1 | <?php |
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2 | |
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3 | /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ |
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4 | |
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5 | /** |
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6 | * Database independent query interface |
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7 | * |
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8 | * PHP versions 4 and 5 |
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9 | * |
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10 | * LICENSE: This source file is subject to version 3.0 of the PHP license |
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11 | * that is available through the world-wide-web at the following URI: |
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12 | * http://www.php.net/license/3_0.txt. If you did not receive a copy of |
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13 | * the PHP License and are unable to obtain it through the web, please |
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14 | * send a note to license@php.net so we can mail you a copy immediately. |
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15 | * |
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16 | * @category Database |
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17 | * @package DB |
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18 | * @author Stig Bakken <ssb@php.net> |
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19 | * @author Tomas V.V.Cox <cox@idecnet.com> |
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20 | * @author Daniel Convissor <danielc@php.net> |
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21 | * @copyright 1997-2005 The PHP Group |
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22 | * @license http://www.php.net/license/3_0.txt PHP License 3.0 |
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23 | * @version CVS: $Id$ |
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24 | * @link http://pear.php.net/package/DB |
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25 | */ |
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26 | |
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27 | /** |
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28 | * Obtain the PEAR class so it can be extended from |
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29 | */ |
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30 | |
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31 | if(!defined('DB_PHP_DIR')) { |
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32 | $DB_PHP_DIR = realpath(dirname( __FILE__)); |
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33 | define("DB_PHP_DIR", $DB_PHP_DIR); |
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34 | } |
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35 | |
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36 | require_once DB_PHP_DIR . '/PEAR.php'; |
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37 | |
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38 | // {{{ constants |
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39 | // {{{ error codes |
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40 | |
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41 | /**#@+ |
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42 | * One of PEAR DB's portable error codes. |
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43 | * @see DB_common::errorCode(), DB::errorMessage() |
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44 | * |
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45 | * {@internal If you add an error code here, make sure you also add a textual |
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46 | * version of it in DB::errorMessage().}} |
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47 | */ |
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48 | |
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49 | /** |
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50 | * The code returned by many methods upon success |
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51 | */ |
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52 | define('DB_OK', 1); |
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53 | |
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54 | /** |
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55 | * Unkown error |
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56 | */ |
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57 | define('DB_ERROR', -1); |
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58 | |
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59 | /** |
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60 | * Syntax error |
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61 | */ |
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62 | define('DB_ERROR_SYNTAX', -2); |
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63 | |
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64 | /** |
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65 | * Tried to insert a duplicate value into a primary or unique index |
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66 | */ |
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67 | define('DB_ERROR_CONSTRAINT', -3); |
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68 | |
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69 | /** |
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70 | * An identifier in the query refers to a non-existant object |
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71 | */ |
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72 | define('DB_ERROR_NOT_FOUND', -4); |
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73 | |
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74 | /** |
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75 | * Tried to create a duplicate object |
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76 | */ |
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77 | define('DB_ERROR_ALREADY_EXISTS', -5); |
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78 | |
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79 | /** |
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80 | * The current driver does not support the action you attempted |
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81 | */ |
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82 | define('DB_ERROR_UNSUPPORTED', -6); |
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83 | |
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84 | /** |
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85 | * The number of parameters does not match the number of placeholders |
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86 | */ |
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87 | define('DB_ERROR_MISMATCH', -7); |
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88 | |
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89 | /** |
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90 | * A literal submitted did not match the data type expected |
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91 | */ |
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92 | define('DB_ERROR_INVALID', -8); |
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93 | |
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94 | /** |
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95 | * The current DBMS does not support the action you attempted |
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96 | */ |
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97 | define('DB_ERROR_NOT_CAPABLE', -9); |
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98 | |
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99 | /** |
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100 | * A literal submitted was too long so the end of it was removed |
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101 | */ |
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102 | define('DB_ERROR_TRUNCATED', -10); |
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103 | |
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104 | /** |
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105 | * A literal number submitted did not match the data type expected |
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106 | */ |
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107 | define('DB_ERROR_INVALID_NUMBER', -11); |
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108 | |
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109 | /** |
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110 | * A literal date submitted did not match the data type expected |
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111 | */ |
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112 | define('DB_ERROR_INVALID_DATE', -12); |
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113 | |
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114 | /** |
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115 | * Attempt to divide something by zero |
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116 | */ |
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117 | define('DB_ERROR_DIVZERO', -13); |
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118 | |
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119 | /** |
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120 | * A database needs to be selected |
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121 | */ |
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122 | define('DB_ERROR_NODBSELECTED', -14); |
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123 | |
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124 | /** |
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125 | * Could not create the object requested |
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126 | */ |
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127 | define('DB_ERROR_CANNOT_CREATE', -15); |
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128 | |
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129 | /** |
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130 | * Could not drop the database requested because it does not exist |
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131 | */ |
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132 | define('DB_ERROR_CANNOT_DROP', -17); |
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133 | |
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134 | /** |
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135 | * An identifier in the query refers to a non-existant table |
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136 | */ |
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137 | define('DB_ERROR_NOSUCHTABLE', -18); |
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138 | |
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139 | /** |
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140 | * An identifier in the query refers to a non-existant column |
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141 | */ |
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142 | define('DB_ERROR_NOSUCHFIELD', -19); |
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143 | |
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144 | /** |
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145 | * The data submitted to the method was inappropriate |
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146 | */ |
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147 | define('DB_ERROR_NEED_MORE_DATA', -20); |
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148 | |
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149 | /** |
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150 | * The attempt to lock the table failed |
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151 | */ |
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152 | define('DB_ERROR_NOT_LOCKED', -21); |
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153 | |
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154 | /** |
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155 | * The number of columns doesn't match the number of values |
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156 | */ |
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157 | define('DB_ERROR_VALUE_COUNT_ON_ROW', -22); |
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158 | |
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159 | /** |
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160 | * The DSN submitted has problems |
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161 | */ |
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162 | define('DB_ERROR_INVALID_DSN', -23); |
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163 | |
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164 | /** |
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165 | * Could not connect to the database |
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166 | */ |
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167 | define('DB_ERROR_CONNECT_FAILED', -24); |
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168 | |
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169 | /** |
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170 | * The PHP extension needed for this DBMS could not be found |
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171 | */ |
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172 | define('DB_ERROR_EXTENSION_NOT_FOUND',-25); |
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173 | |
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174 | /** |
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175 | * The present user has inadequate permissions to perform the task requestd |
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176 | */ |
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177 | define('DB_ERROR_ACCESS_VIOLATION', -26); |
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178 | |
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179 | /** |
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180 | * The database requested does not exist |
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181 | */ |
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182 | define('DB_ERROR_NOSUCHDB', -27); |
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183 | |
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184 | /** |
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185 | * Tried to insert a null value into a column that doesn't allow nulls |
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186 | */ |
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187 | define('DB_ERROR_CONSTRAINT_NOT_NULL',-29); |
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188 | /**#@-*/ |
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189 | |
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190 | |
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191 | // }}} |
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192 | // {{{ prepared statement-related |
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193 | |
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194 | |
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195 | /**#@+ |
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196 | * Identifiers for the placeholders used in prepared statements. |
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197 | * @see DB_common::prepare() |
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198 | */ |
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199 | |
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200 | /** |
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201 | * Indicates a scalar (<kbd>?</kbd>) placeholder was used |
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202 | * |
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203 | * Quote and escape the value as necessary. |
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204 | */ |
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205 | define('DB_PARAM_SCALAR', 1); |
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206 | |
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207 | /** |
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208 | * Indicates an opaque (<kbd>&</kbd>) placeholder was used |
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209 | * |
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210 | * The value presented is a file name. Extract the contents of that file |
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211 | * and place them in this column. |
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212 | */ |
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213 | define('DB_PARAM_OPAQUE', 2); |
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214 | |
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215 | /** |
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216 | * Indicates a misc (<kbd>!</kbd>) placeholder was used |
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217 | * |
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218 | * The value should not be quoted or escaped. |
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219 | */ |
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220 | define('DB_PARAM_MISC', 3); |
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221 | /**#@-*/ |
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222 | |
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223 | |
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224 | // }}} |
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225 | // {{{ binary data-related |
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226 | |
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227 | |
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228 | /**#@+ |
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229 | * The different ways of returning binary data from queries. |
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230 | */ |
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231 | |
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232 | /** |
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233 | * Sends the fetched data straight through to output |
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234 | */ |
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235 | define('DB_BINMODE_PASSTHRU', 1); |
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236 | |
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237 | /** |
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238 | * Lets you return data as usual |
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239 | */ |
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240 | define('DB_BINMODE_RETURN', 2); |
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241 | |
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242 | /** |
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243 | * Converts the data to hex format before returning it |
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244 | * |
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245 | * For example the string "123" would become "313233". |
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246 | */ |
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247 | define('DB_BINMODE_CONVERT', 3); |
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248 | /**#@-*/ |
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249 | |
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250 | |
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251 | // }}} |
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252 | // {{{ fetch modes |
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253 | |
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254 | |
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255 | /**#@+ |
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256 | * Fetch Modes. |
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257 | * @see DB_common::setFetchMode() |
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258 | */ |
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259 | |
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260 | /** |
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261 | * Indicates the current default fetch mode should be used |
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262 | * @see DB_common::$fetchmode |
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263 | */ |
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264 | define('DB_FETCHMODE_DEFAULT', 0); |
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265 | |
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266 | /** |
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267 | * Column data indexed by numbers, ordered from 0 and up |
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268 | */ |
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269 | define('DB_FETCHMODE_ORDERED', 1); |
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270 | |
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271 | /** |
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272 | * Column data indexed by column names |
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273 | */ |
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274 | define('DB_FETCHMODE_ASSOC', 2); |
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275 | |
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276 | /** |
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277 | * Column data as object properties |
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278 | */ |
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279 | define('DB_FETCHMODE_OBJECT', 3); |
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280 | |
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281 | /** |
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282 | * For multi-dimensional results, make the column name the first level |
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283 | * of the array and put the row number in the second level of the array |
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284 | * |
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285 | * This is flipped from the normal behavior, which puts the row numbers |
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286 | * in the first level of the array and the column names in the second level. |
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287 | */ |
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288 | define('DB_FETCHMODE_FLIPPED', 4); |
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289 | /**#@-*/ |
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290 | |
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291 | /**#@+ |
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292 | * Old fetch modes. Left here for compatibility. |
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293 | */ |
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294 | define('DB_GETMODE_ORDERED', DB_FETCHMODE_ORDERED); |
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295 | define('DB_GETMODE_ASSOC', DB_FETCHMODE_ASSOC); |
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296 | define('DB_GETMODE_FLIPPED', DB_FETCHMODE_FLIPPED); |
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297 | /**#@-*/ |
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298 | |
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299 | |
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300 | // }}} |
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301 | // {{{ tableInfo() && autoPrepare()-related |
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302 | |
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303 | |
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304 | /**#@+ |
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305 | * The type of information to return from the tableInfo() method. |
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306 | * |
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307 | * Bitwised constants, so they can be combined using <kbd>|</kbd> |
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308 | * and removed using <kbd>^</kbd>. |
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309 | * |
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310 | * @see DB_common::tableInfo() |
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311 | * |
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312 | * {@internal Since the TABLEINFO constants are bitwised, if more of them are |
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313 | * added in the future, make sure to adjust DB_TABLEINFO_FULL accordingly.}} |
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314 | */ |
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315 | define('DB_TABLEINFO_ORDER', 1); |
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316 | define('DB_TABLEINFO_ORDERTABLE', 2); |
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317 | define('DB_TABLEINFO_FULL', 3); |
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318 | /**#@-*/ |
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319 | |
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320 | |
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321 | /**#@+ |
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322 | * The type of query to create with the automatic query building methods. |
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323 | * @see DB_common::autoPrepare(), DB_common::autoExecute() |
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324 | */ |
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325 | define('DB_AUTOQUERY_INSERT', 1); |
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326 | define('DB_AUTOQUERY_UPDATE', 2); |
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327 | /**#@-*/ |
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328 | |
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329 | |
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330 | // }}} |
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331 | // {{{ portability modes |
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332 | |
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333 | |
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334 | /**#@+ |
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335 | * Portability Modes. |
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336 | * |
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337 | * Bitwised constants, so they can be combined using <kbd>|</kbd> |
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338 | * and removed using <kbd>^</kbd>. |
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339 | * |
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340 | * @see DB_common::setOption() |
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341 | * |
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342 | * {@internal Since the PORTABILITY constants are bitwised, if more of them are |
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343 | * added in the future, make sure to adjust DB_PORTABILITY_ALL accordingly.}} |
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344 | */ |
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345 | |
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346 | /** |
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347 | * Turn off all portability features |
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348 | */ |
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349 | define('DB_PORTABILITY_NONE', 0); |
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350 | |
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351 | /** |
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352 | * Convert names of tables and fields to lower case |
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353 | * when using the get*(), fetch*() and tableInfo() methods |
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354 | */ |
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355 | define('DB_PORTABILITY_LOWERCASE', 1); |
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356 | |
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357 | /** |
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358 | * Right trim the data output by get*() and fetch*() |
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359 | */ |
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360 | define('DB_PORTABILITY_RTRIM', 2); |
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361 | |
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362 | /** |
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363 | * Force reporting the number of rows deleted |
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364 | */ |
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365 | define('DB_PORTABILITY_DELETE_COUNT', 4); |
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366 | |
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367 | /** |
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368 | * Enable hack that makes numRows() work in Oracle |
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369 | */ |
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370 | define('DB_PORTABILITY_NUMROWS', 8); |
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371 | |
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372 | /** |
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373 | * Makes certain error messages in certain drivers compatible |
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374 | * with those from other DBMS's |
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375 | * |
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376 | * + mysql, mysqli: change unique/primary key constraints |
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377 | * DB_ERROR_ALREADY_EXISTS -> DB_ERROR_CONSTRAINT |
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378 | * |
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379 | * + odbc(access): MS's ODBC driver reports 'no such field' as code |
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380 | * 07001, which means 'too few parameters.' When this option is on |
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381 | * that code gets mapped to DB_ERROR_NOSUCHFIELD. |
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382 | */ |
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383 | define('DB_PORTABILITY_ERRORS', 16); |
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384 | |
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385 | /** |
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386 | * Convert null values to empty strings in data output by |
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387 | * get*() and fetch*() |
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388 | */ |
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389 | define('DB_PORTABILITY_NULL_TO_EMPTY', 32); |
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390 | |
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391 | /** |
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392 | * Turn on all portability features |
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393 | */ |
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394 | define('DB_PORTABILITY_ALL', 63); |
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395 | /**#@-*/ |
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396 | |
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397 | // }}} |
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398 | |
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399 | |
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400 | // }}} |
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401 | // {{{ class DB |
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402 | |
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403 | /** |
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404 | * Database independent query interface |
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405 | * |
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406 | * The main "DB" class is simply a container class with some static |
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407 | * methods for creating DB objects as well as some utility functions |
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408 | * common to all parts of DB. |
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409 | * |
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410 | * The object model of DB is as follows (indentation means inheritance): |
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411 | * <pre> |
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412 | * DB The main DB class. This is simply a utility class |
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413 | * with some "static" methods for creating DB objects as |
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414 | * well as common utility functions for other DB classes. |
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415 | * |
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416 | * DB_common The base for each DB implementation. Provides default |
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417 | * | implementations (in OO lingo virtual methods) for |
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418 | * | the actual DB implementations as well as a bunch of |
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419 | * | query utility functions. |
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420 | * | |
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421 | * +-DB_mysql The DB implementation for MySQL. Inherits DB_common. |
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422 | * When calling DB::factory or DB::connect for MySQL |
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423 | * connections, the object returned is an instance of this |
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424 | * class. |
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425 | * </pre> |
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426 | * |
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427 | * @category Database |
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428 | * @package DB |
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429 | * @author Stig Bakken <ssb@php.net> |
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430 | * @author Tomas V.V.Cox <cox@idecnet.com> |
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431 | * @author Daniel Convissor <danielc@php.net> |
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432 | * @copyright 1997-2005 The PHP Group |
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433 | * @license http://www.php.net/license/3_0.txt PHP License 3.0 |
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434 | * @version Release: @package_version@ |
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435 | * @link http://pear.php.net/package/DB |
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436 | */ |
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437 | class DB |
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438 | { |
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439 | // {{{ &factory() |
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440 | |
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441 | /** |
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442 | * Create a new DB object for the specified database type but don't |
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443 | * connect to the database |
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444 | * |
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445 | * @param string $type the database type (eg "mysql") |
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446 | * @param array $options an associative array of option names and values |
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447 | * |
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448 | * @return object a new DB object. A DB_Error object on failure. |
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449 | * |
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450 | * @see DB_common::setOption() |
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451 | */ |
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452 | function &factory($type, $options = false) |
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453 | { |
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454 | if (!is_array($options)) { |
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455 | $options = array('persistent' => $options); |
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456 | } |
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457 | |
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458 | if (isset($options['debug']) && $options['debug'] >= 2) { |
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459 | // expose php errors with sufficient debug level |
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460 | include_once DB_PHP_DIR . "/DB/{$type}.php"; |
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461 | } else { |
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462 | @include_once DB_PHP_DIR . "/DB/{$type}.php"; |
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463 | } |
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464 | |
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465 | $classname = "DB_${type}"; |
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466 | |
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467 | if (!class_exists($classname)) { |
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468 | $tmp = PEAR::raiseError(null, DB_ERROR_NOT_FOUND, null, null, |
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469 | "Unable to include the DB/{$type}.php" |
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470 | . " file for '$dsn'", |
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471 | 'DB_Error', true); |
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472 | return $tmp; |
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473 | } |
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474 | |
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475 | @$obj =& new $classname; |
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476 | |
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477 | foreach ($options as $option => $value) { |
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478 | $test = $obj->setOption($option, $value); |
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479 | if (DB::isError($test)) { |
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480 | return $test; |
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481 | } |
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482 | } |
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483 | |
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484 | return $obj; |
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485 | } |
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486 | |
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487 | // }}} |
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488 | // {{{ &connect() |
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489 | |
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490 | /** |
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491 | * Create a new DB object including a connection to the specified database |
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492 | * |
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493 | * Example 1. |
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494 | * <code> |
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495 | * require_once 'DB.php'; |
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496 | * |
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497 | * $dsn = 'pgsql://user:password@host/database'; |
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498 | * $options = array( |
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499 | * 'debug' => 2, |
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500 | * 'portability' => DB_PORTABILITY_ALL, |
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501 | * ); |
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502 | * |
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503 | * $db =& DB::connect($dsn, $options); |
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504 | * if (PEAR::isError($db)) { |
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505 | * die($db->getMessage()); |
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506 | * } |
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507 | * </code> |
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508 | * |
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509 | * @param mixed $dsn the string "data source name" or array in the |
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510 | * format returned by DB::parseDSN() |
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511 | * @param array $options an associative array of option names and values |
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512 | * |
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513 | * @return object a new DB object. A DB_Error object on failure. |
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514 | * |
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515 | * @uses DB_dbase::connect(), DB_fbsql::connect(), DB_ibase::connect(), |
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516 | * DB_ifx::connect(), DB_msql::connect(), DB_mssql::connect(), |
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517 | * DB_mysql::connect(), DB_mysqli::connect(), DB_oci8::connect(), |
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518 | * DB_odbc::connect(), DB_pgsql::connect(), DB_sqlite::connect(), |
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519 | * DB_sybase::connect() |
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520 | * |
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521 | * @uses DB::parseDSN(), DB_common::setOption(), PEAR::isError() |
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522 | */ |
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523 | function &connect($dsn, $options = array()) |
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524 | { |
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525 | $dsninfo = DB::parseDSN($dsn); |
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526 | $type = $dsninfo['phptype']; |
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527 | |
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528 | if (!is_array($options)) { |
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529 | /* |
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530 | * For backwards compatibility. $options used to be boolean, |
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531 | * indicating whether the connection should be persistent. |
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532 | */ |
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533 | $options = array('persistent' => $options); |
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534 | } |
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535 | |
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536 | if (isset($options['debug']) && $options['debug'] >= 2) { |
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537 | // expose php errors with sufficient debug level |
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538 | include_once DB_PHP_DIR . "/DB/${type}.php"; |
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539 | } else { |
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540 | @include_once DB_PHP_DIR . "/DB/${type}.php"; |
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541 | } |
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542 | |
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543 | $classname = "DB_${type}"; |
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544 | if (!class_exists($classname)) { |
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545 | $tmp = PEAR::raiseError(null, DB_ERROR_NOT_FOUND, null, null, |
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546 | "Unable to include the DB/{$type}.php" |
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547 | . " file for '$dsn'", |
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548 | 'DB_Error', true); |
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549 | return $tmp; |
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550 | } |
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551 | |
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552 | @$obj =& new $classname; |
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553 | |
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554 | foreach ($options as $option => $value) { |
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555 | $test = $obj->setOption($option, $value); |
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556 | if (DB::isError($test)) { |
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557 | return $test; |
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558 | } |
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559 | } |
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560 | |
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561 | $err = $obj->connect($dsninfo, $obj->getOption('persistent')); |
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562 | if (DB::isError($err)) { |
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563 | $err->addUserInfo($dsn); |
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564 | return $err; |
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565 | } |
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566 | |
---|
567 | return $obj; |
---|
568 | } |
---|
569 | |
---|
570 | // }}} |
---|
571 | // {{{ apiVersion() |
---|
572 | |
---|
573 | /** |
---|
574 | * Return the DB API version |
---|
575 | * |
---|
576 | * @return string the DB API version number |
---|
577 | */ |
---|
578 | function apiVersion() |
---|
579 | { |
---|
580 | return '@package_version@'; |
---|
581 | } |
---|
582 | |
---|
583 | // }}} |
---|
584 | // {{{ isError() |
---|
585 | |
---|
586 | /** |
---|
587 | * Determines if a variable is a DB_Error object |
---|
588 | * |
---|
589 | * @param mixed $value the variable to check |
---|
590 | * |
---|
591 | * @return bool whether $value is DB_Error object |
---|
592 | */ |
---|
593 | function isError($value) |
---|
594 | { |
---|
595 | return is_a($value, 'DB_Error'); |
---|
596 | } |
---|
597 | |
---|
598 | // }}} |
---|
599 | // {{{ isConnection() |
---|
600 | |
---|
601 | /** |
---|
602 | * Determines if a value is a DB_<driver> object |
---|
603 | * |
---|
604 | * @param mixed $value the value to test |
---|
605 | * |
---|
606 | * @return bool whether $value is a DB_<driver> object |
---|
607 | */ |
---|
608 | function isConnection($value) |
---|
609 | { |
---|
610 | return (is_object($value) && |
---|
611 | is_subclass_of($value, 'db_common') && |
---|
612 | method_exists($value, 'simpleQuery')); |
---|
613 | } |
---|
614 | |
---|
615 | // }}} |
---|
616 | // {{{ isManip() |
---|
617 | |
---|
618 | /** |
---|
619 | * Tell whether a query is a data manipulation or data definition query |
---|
620 | * |
---|
621 | * Examples of data manipulation queries are INSERT, UPDATE and DELETE. |
---|
622 | * Examples of data definition queries are CREATE, DROP, ALTER, GRANT, |
---|
623 | * REVOKE. |
---|
624 | * |
---|
625 | * @param string $query the query |
---|
626 | * |
---|
627 | * @return boolean whether $query is a data manipulation query |
---|
628 | */ |
---|
629 | function isManip($query) |
---|
630 | { |
---|
631 | $manips = 'INSERT|UPDATE|DELETE|REPLACE|' |
---|
632 | . 'CREATE|DROP|' |
---|
633 | . 'LOAD DATA|SELECT .* INTO|COPY|' |
---|
634 | . 'ALTER|GRANT|REVOKE|' |
---|
635 | . 'LOCK|UNLOCK'; |
---|
636 | if (preg_match('/^\s*"?(' . $manips . ')\s+/i', $query)) { |
---|
637 | return true; |
---|
638 | } |
---|
639 | return false; |
---|
640 | } |
---|
641 | |
---|
642 | // }}} |
---|
643 | // {{{ errorMessage() |
---|
644 | |
---|
645 | /** |
---|
646 | * Return a textual error message for a DB error code |
---|
647 | * |
---|
648 | * @param integer $value the DB error code |
---|
649 | * |
---|
650 | * @return string the error message or false if the error code was |
---|
651 | * not recognized |
---|
652 | */ |
---|
653 | function errorMessage($value) |
---|
654 | { |
---|
655 | static $errorMessages; |
---|
656 | if (!isset($errorMessages)) { |
---|
657 | $errorMessages = array( |
---|
658 | DB_ERROR => 'unknown error', |
---|
659 | DB_ERROR_ACCESS_VIOLATION => 'insufficient permissions', |
---|
660 | DB_ERROR_ALREADY_EXISTS => 'already exists', |
---|
661 | DB_ERROR_CANNOT_CREATE => 'can not create', |
---|
662 | DB_ERROR_CANNOT_DROP => 'can not drop', |
---|
663 | DB_ERROR_CONNECT_FAILED => 'connect failed', |
---|
664 | DB_ERROR_CONSTRAINT => 'constraint violation', |
---|
665 | DB_ERROR_CONSTRAINT_NOT_NULL=> 'null value violates not-null constraint', |
---|
666 | DB_ERROR_DIVZERO => 'division by zero', |
---|
667 | DB_ERROR_EXTENSION_NOT_FOUND=> 'extension not found', |
---|
668 | DB_ERROR_INVALID => 'invalid', |
---|
669 | DB_ERROR_INVALID_DATE => 'invalid date or time', |
---|
670 | DB_ERROR_INVALID_DSN => 'invalid DSN', |
---|
671 | DB_ERROR_INVALID_NUMBER => 'invalid number', |
---|
672 | DB_ERROR_MISMATCH => 'mismatch', |
---|
673 | DB_ERROR_NEED_MORE_DATA => 'insufficient data supplied', |
---|
674 | DB_ERROR_NODBSELECTED => 'no database selected', |
---|
675 | DB_ERROR_NOSUCHDB => 'no such database', |
---|
676 | DB_ERROR_NOSUCHFIELD => 'no such field', |
---|
677 | DB_ERROR_NOSUCHTABLE => 'no such table', |
---|
678 | DB_ERROR_NOT_CAPABLE => 'DB backend not capable', |
---|
679 | DB_ERROR_NOT_FOUND => 'not found', |
---|
680 | DB_ERROR_NOT_LOCKED => 'not locked', |
---|
681 | DB_ERROR_SYNTAX => 'syntax error', |
---|
682 | DB_ERROR_UNSUPPORTED => 'not supported', |
---|
683 | DB_ERROR_TRUNCATED => 'truncated', |
---|
684 | DB_ERROR_VALUE_COUNT_ON_ROW => 'value count on row', |
---|
685 | DB_OK => 'no error', |
---|
686 | ); |
---|
687 | } |
---|
688 | |
---|
689 | if (DB::isError($value)) { |
---|
690 | $value = $value->getCode(); |
---|
691 | } |
---|
692 | |
---|
693 | return isset($errorMessages[$value]) ? $errorMessages[$value] |
---|
694 | : $errorMessages[DB_ERROR]; |
---|
695 | } |
---|
696 | |
---|
697 | // }}} |
---|
698 | // {{{ parseDSN() |
---|
699 | |
---|
700 | /** |
---|
701 | * Parse a data source name |
---|
702 | * |
---|
703 | * Additional keys can be added by appending a URI query string to the |
---|
704 | * end of the DSN. |
---|
705 | * |
---|
706 | * The format of the supplied DSN is in its fullest form: |
---|
707 | * <code> |
---|
708 | * phptype(dbsyntax)://username:password@protocol+hostspec/database?option=8&another=true |
---|
709 | * </code> |
---|
710 | * |
---|
711 | * Most variations are allowed: |
---|
712 | * <code> |
---|
713 | * phptype://username:password@protocol+hostspec:110//usr/db_file.db?mode=0644 |
---|
714 | * phptype://username:password@hostspec/database_name |
---|
715 | * phptype://username:password@hostspec |
---|
716 | * phptype://username@hostspec |
---|
717 | * phptype://hostspec/database |
---|
718 | * phptype://hostspec |
---|
719 | * phptype(dbsyntax) |
---|
720 | * phptype |
---|
721 | * </code> |
---|
722 | * |
---|
723 | * @param string $dsn Data Source Name to be parsed |
---|
724 | * |
---|
725 | * @return array an associative array with the following keys: |
---|
726 | * + phptype: Database backend used in PHP (mysql, odbc etc.) |
---|
727 | * + dbsyntax: Database used with regards to SQL syntax etc. |
---|
728 | * + protocol: Communication protocol to use (tcp, unix etc.) |
---|
729 | * + hostspec: Host specification (hostname[:port]) |
---|
730 | * + database: Database to use on the DBMS server |
---|
731 | * + username: User name for login |
---|
732 | * + password: Password for login |
---|
733 | */ |
---|
734 | function parseDSN($dsn) |
---|
735 | { |
---|
736 | $parsed = array( |
---|
737 | 'phptype' => false, |
---|
738 | 'dbsyntax' => false, |
---|
739 | 'username' => false, |
---|
740 | 'password' => false, |
---|
741 | 'protocol' => false, |
---|
742 | 'hostspec' => false, |
---|
743 | 'port' => false, |
---|
744 | 'socket' => false, |
---|
745 | 'database' => false, |
---|
746 | ); |
---|
747 | |
---|
748 | if (is_array($dsn)) { |
---|
749 | $dsn = array_merge($parsed, $dsn); |
---|
750 | if (!$dsn['dbsyntax']) { |
---|
751 | $dsn['dbsyntax'] = $dsn['phptype']; |
---|
752 | } |
---|
753 | return $dsn; |
---|
754 | } |
---|
755 | |
---|
756 | // Find phptype and dbsyntax |
---|
757 | if (($pos = strpos($dsn, '://')) !== false) { |
---|
758 | $str = substr($dsn, 0, $pos); |
---|
759 | $dsn = substr($dsn, $pos + 3); |
---|
760 | } else { |
---|
761 | $str = $dsn; |
---|
762 | $dsn = null; |
---|
763 | } |
---|
764 | |
---|
765 | // Get phptype and dbsyntax |
---|
766 | // $str => phptype(dbsyntax) |
---|
767 | if (preg_match('|^(.+?)\((.*?)\)$|', $str, $arr)) { |
---|
768 | $parsed['phptype'] = $arr[1]; |
---|
769 | $parsed['dbsyntax'] = !$arr[2] ? $arr[1] : $arr[2]; |
---|
770 | } else { |
---|
771 | $parsed['phptype'] = $str; |
---|
772 | $parsed['dbsyntax'] = $str; |
---|
773 | } |
---|
774 | |
---|
775 | if (!count($dsn)) { |
---|
776 | return $parsed; |
---|
777 | } |
---|
778 | |
---|
779 | // Get (if found): username and password |
---|
780 | // $dsn => username:password@protocol+hostspec/database |
---|
781 | if (($at = strrpos($dsn,'@')) !== false) { |
---|
782 | $str = substr($dsn, 0, $at); |
---|
783 | $dsn = substr($dsn, $at + 1); |
---|
784 | if (($pos = strpos($str, ':')) !== false) { |
---|
785 | $parsed['username'] = rawurldecode(substr($str, 0, $pos)); |
---|
786 | $parsed['password'] = rawurldecode(substr($str, $pos + 1)); |
---|
787 | } else { |
---|
788 | $parsed['username'] = rawurldecode($str); |
---|
789 | } |
---|
790 | } |
---|
791 | |
---|
792 | // Find protocol and hostspec |
---|
793 | |
---|
794 | if (preg_match('|^([^(]+)\((.*?)\)/?(.*?)$|', $dsn, $match)) { |
---|
795 | // $dsn => proto(proto_opts)/database |
---|
796 | $proto = $match[1]; |
---|
797 | $proto_opts = $match[2] ? $match[2] : false; |
---|
798 | $dsn = $match[3]; |
---|
799 | |
---|
800 | } else { |
---|
801 | // $dsn => protocol+hostspec/database (old format) |
---|
802 | if (strpos($dsn, '+') !== false) { |
---|
803 | list($proto, $dsn) = explode('+', $dsn, 2); |
---|
804 | } |
---|
805 | if (strpos($dsn, '/') !== false) { |
---|
806 | list($proto_opts, $dsn) = explode('/', $dsn, 2); |
---|
807 | } else { |
---|
808 | $proto_opts = $dsn; |
---|
809 | $dsn = null; |
---|
810 | } |
---|
811 | } |
---|
812 | |
---|
813 | // process the different protocol options |
---|
814 | $parsed['protocol'] = (!empty($proto)) ? $proto : 'tcp'; |
---|
815 | $proto_opts = rawurldecode($proto_opts); |
---|
816 | if ($parsed['protocol'] == 'tcp') { |
---|
817 | if (strpos($proto_opts, ':') !== false) { |
---|
818 | list($parsed['hostspec'], |
---|
819 | $parsed['port']) = explode(':', $proto_opts); |
---|
820 | } else { |
---|
821 | $parsed['hostspec'] = $proto_opts; |
---|
822 | } |
---|
823 | } elseif ($parsed['protocol'] == 'unix') { |
---|
824 | $parsed['socket'] = $proto_opts; |
---|
825 | } |
---|
826 | |
---|
827 | // Get dabase if any |
---|
828 | // $dsn => database |
---|
829 | if ($dsn) { |
---|
830 | if (($pos = strpos($dsn, '?')) === false) { |
---|
831 | // /database |
---|
832 | $parsed['database'] = rawurldecode($dsn); |
---|
833 | } else { |
---|
834 | // /database?param1=value1¶m2=value2 |
---|
835 | $parsed['database'] = rawurldecode(substr($dsn, 0, $pos)); |
---|
836 | $dsn = substr($dsn, $pos + 1); |
---|
837 | if (strpos($dsn, '&') !== false) { |
---|
838 | $opts = explode('&', $dsn); |
---|
839 | } else { // database?param1=value1 |
---|
840 | $opts = array($dsn); |
---|
841 | } |
---|
842 | foreach ($opts as $opt) { |
---|
843 | list($key, $value) = explode('=', $opt); |
---|
844 | if (!isset($parsed[$key])) { |
---|
845 | // don't allow params overwrite |
---|
846 | $parsed[$key] = rawurldecode($value); |
---|
847 | } |
---|
848 | } |
---|
849 | } |
---|
850 | } |
---|
851 | |
---|
852 | return $parsed; |
---|
853 | } |
---|
854 | |
---|
855 | // }}} |
---|
856 | } |
---|
857 | |
---|
858 | // }}} |
---|
859 | // {{{ class DB_Error |
---|
860 | |
---|
861 | /** |
---|
862 | * DB_Error implements a class for reporting portable database error |
---|
863 | * messages |
---|
864 | * |
---|
865 | * @category Database |
---|
866 | * @package DB |
---|
867 | * @author Stig Bakken <ssb@php.net> |
---|
868 | * @copyright 1997-2005 The PHP Group |
---|
869 | * @license http://www.php.net/license/3_0.txt PHP License 3.0 |
---|
870 | * @version Release: @package_version@ |
---|
871 | * @link http://pear.php.net/package/DB |
---|
872 | */ |
---|
873 | class DB_Error extends PEAR_Error |
---|
874 | { |
---|
875 | // {{{ constructor |
---|
876 | |
---|
877 | /** |
---|
878 | * DB_Error constructor |
---|
879 | * |
---|
880 | * @param mixed $code DB error code, or string with error message |
---|
881 | * @param int $mode what "error mode" to operate in |
---|
882 | * @param int $level what error level to use for $mode & |
---|
883 | * PEAR_ERROR_TRIGGER |
---|
884 | * @param mixed $debuginfo additional debug info, such as the last query |
---|
885 | * |
---|
886 | * @see PEAR_Error |
---|
887 | */ |
---|
888 | function DB_Error($code = DB_ERROR, $mode = PEAR_ERROR_RETURN, |
---|
889 | $level = E_USER_NOTICE, $debuginfo = null) |
---|
890 | { |
---|
891 | if (is_int($code)) { |
---|
892 | $this->PEAR_Error('DB Error: ' . DB::errorMessage($code), $code, |
---|
893 | $mode, $level, $debuginfo); |
---|
894 | } else { |
---|
895 | $this->PEAR_Error("DB Error: $code", DB_ERROR, |
---|
896 | $mode, $level, $debuginfo); |
---|
897 | } |
---|
898 | } |
---|
899 | |
---|
900 | // }}} |
---|
901 | } |
---|
902 | |
---|
903 | // }}} |
---|
904 | // {{{ class DB_result |
---|
905 | |
---|
906 | /** |
---|
907 | * This class implements a wrapper for a DB result set |
---|
908 | * |
---|
909 | * A new instance of this class will be returned by the DB implementation |
---|
910 | * after processing a query that returns data. |
---|
911 | * |
---|
912 | * @category Database |
---|
913 | * @package DB |
---|
914 | * @author Stig Bakken <ssb@php.net> |
---|
915 | * @copyright 1997-2005 The PHP Group |
---|
916 | * @license http://www.php.net/license/3_0.txt PHP License 3.0 |
---|
917 | * @version Release: @package_version@ |
---|
918 | * @link http://pear.php.net/package/DB |
---|
919 | */ |
---|
920 | class DB_result |
---|
921 | { |
---|
922 | // {{{ properties |
---|
923 | |
---|
924 | /** |
---|
925 | * Should results be freed automatically when there are no more rows? |
---|
926 | * @var boolean |
---|
927 | * @see DB_common::$options |
---|
928 | */ |
---|
929 | var $autofree; |
---|
930 | |
---|
931 | /** |
---|
932 | * A reference to the DB_<driver> object |
---|
933 | * @var object |
---|
934 | */ |
---|
935 | var $dbh; |
---|
936 | |
---|
937 | /** |
---|
938 | * The current default fetch mode |
---|
939 | * @var integer |
---|
940 | * @see DB_common::$fetchmode |
---|
941 | */ |
---|
942 | var $fetchmode; |
---|
943 | |
---|
944 | /** |
---|
945 | * The name of the class into which results should be fetched when |
---|
946 | * DB_FETCHMODE_OBJECT is in effect |
---|
947 | * |
---|
948 | * @var string |
---|
949 | * @see DB_common::$fetchmode_object_class |
---|
950 | */ |
---|
951 | var $fetchmode_object_class; |
---|
952 | |
---|
953 | /** |
---|
954 | * The number of rows to fetch from a limit query |
---|
955 | * @var integer |
---|
956 | */ |
---|
957 | var $limit_count = null; |
---|
958 | |
---|
959 | /** |
---|
960 | * The row to start fetching from in limit queries |
---|
961 | * @var integer |
---|
962 | */ |
---|
963 | var $limit_from = null; |
---|
964 | |
---|
965 | /** |
---|
966 | * The execute parameters that created this result |
---|
967 | * @var array |
---|
968 | * @since Property available since Release 1.7.0 |
---|
969 | */ |
---|
970 | var $parameters; |
---|
971 | |
---|
972 | /** |
---|
973 | * The query string that created this result |
---|
974 | * |
---|
975 | * Copied here incase it changes in $dbh, which is referenced |
---|
976 | * |
---|
977 | * @var string |
---|
978 | * @since Property available since Release 1.7.0 |
---|
979 | */ |
---|
980 | var $query; |
---|
981 | |
---|
982 | /** |
---|
983 | * The query result resource id created by PHP |
---|
984 | * @var resource |
---|
985 | */ |
---|
986 | var $result; |
---|
987 | |
---|
988 | /** |
---|
989 | * The present row being dealt with |
---|
990 | * @var integer |
---|
991 | */ |
---|
992 | var $row_counter = null; |
---|
993 | |
---|
994 | /** |
---|
995 | * The prepared statement resource id created by PHP in $dbh |
---|
996 | * |
---|
997 | * This resource is only available when the result set was created using |
---|
998 | * a driver's native execute() method, not PEAR DB's emulated one. |
---|
999 | * |
---|
1000 | * Copied here incase it changes in $dbh, which is referenced |
---|
1001 | * |
---|
1002 | * {@internal Mainly here because the InterBase/Firebird API is only |
---|
1003 | * able to retrieve data from result sets if the statemnt handle is |
---|
1004 | * still in scope.}} |
---|
1005 | * |
---|
1006 | * @var resource |
---|
1007 | * @since Property available since Release 1.7.0 |
---|
1008 | */ |
---|
1009 | var $statement; |
---|
1010 | |
---|
1011 | |
---|
1012 | // }}} |
---|
1013 | // {{{ constructor |
---|
1014 | |
---|
1015 | /** |
---|
1016 | * This constructor sets the object's properties |
---|
1017 | * |
---|
1018 | * @param object &$dbh the DB object reference |
---|
1019 | * @param resource $result the result resource id |
---|
1020 | * @param array $options an associative array with result options |
---|
1021 | * |
---|
1022 | * @return void |
---|
1023 | */ |
---|
1024 | function DB_result(&$dbh, $result, $options = array()) |
---|
1025 | { |
---|
1026 | $this->autofree = $dbh->options['autofree']; |
---|
1027 | $this->dbh = &$dbh; |
---|
1028 | $this->fetchmode = $dbh->fetchmode; |
---|
1029 | $this->fetchmode_object_class = $dbh->fetchmode_object_class; |
---|
1030 | $this->parameters = $dbh->last_parameters; |
---|
1031 | $this->query = $dbh->last_query; |
---|
1032 | $this->result = $result; |
---|
1033 | $this->statement = empty($dbh->last_stmt) ? null : $dbh->last_stmt; |
---|
1034 | foreach ($options as $key => $value) { |
---|
1035 | $this->setOption($key, $value); |
---|
1036 | } |
---|
1037 | } |
---|
1038 | |
---|
1039 | /** |
---|
1040 | * Set options for the DB_result object |
---|
1041 | * |
---|
1042 | * @param string $key the option to set |
---|
1043 | * @param mixed $value the value to set the option to |
---|
1044 | * |
---|
1045 | * @return void |
---|
1046 | */ |
---|
1047 | function setOption($key, $value = null) |
---|
1048 | { |
---|
1049 | switch ($key) { |
---|
1050 | case 'limit_from': |
---|
1051 | $this->limit_from = $value; |
---|
1052 | break; |
---|
1053 | case 'limit_count': |
---|
1054 | $this->limit_count = $value; |
---|
1055 | } |
---|
1056 | } |
---|
1057 | |
---|
1058 | // }}} |
---|
1059 | // {{{ fetchRow() |
---|
1060 | |
---|
1061 | /** |
---|
1062 | * Fetch a row of data and return it by reference into an array |
---|
1063 | * |
---|
1064 | * The type of array returned can be controlled either by setting this |
---|
1065 | * method's <var>$fetchmode</var> parameter or by changing the default |
---|
1066 | * fetch mode setFetchMode() before calling this method. |
---|
1067 | * |
---|
1068 | * There are two options for standardizing the information returned |
---|
1069 | * from databases, ensuring their values are consistent when changing |
---|
1070 | * DBMS's. These portability options can be turned on when creating a |
---|
1071 | * new DB object or by using setOption(). |
---|
1072 | * |
---|
1073 | * + <var>DB_PORTABILITY_LOWERCASE</var> |
---|
1074 | * convert names of fields to lower case |
---|
1075 | * |
---|
1076 | * + <var>DB_PORTABILITY_RTRIM</var> |
---|
1077 | * right trim the data |
---|
1078 | * |
---|
1079 | * @param int $fetchmode the constant indicating how to format the data |
---|
1080 | * @param int $rownum the row number to fetch (index starts at 0) |
---|
1081 | * |
---|
1082 | * @return mixed an array or object containing the row's data, |
---|
1083 | * NULL when the end of the result set is reached |
---|
1084 | * or a DB_Error object on failure. |
---|
1085 | * |
---|
1086 | * @see DB_common::setOption(), DB_common::setFetchMode() |
---|
1087 | */ |
---|
1088 | function &fetchRow($fetchmode = DB_FETCHMODE_DEFAULT, $rownum = null) |
---|
1089 | { |
---|
1090 | if ($fetchmode === DB_FETCHMODE_DEFAULT) { |
---|
1091 | $fetchmode = $this->fetchmode; |
---|
1092 | } |
---|
1093 | if ($fetchmode === DB_FETCHMODE_OBJECT) { |
---|
1094 | $fetchmode = DB_FETCHMODE_ASSOC; |
---|
1095 | $object_class = $this->fetchmode_object_class; |
---|
1096 | } |
---|
1097 | if ($this->limit_from !== null) { |
---|
1098 | if ($this->row_counter === null) { |
---|
1099 | $this->row_counter = $this->limit_from; |
---|
1100 | // Skip rows |
---|
1101 | if ($this->dbh->features['limit'] === false) { |
---|
1102 | $i = 0; |
---|
1103 | while ($i++ < $this->limit_from) { |
---|
1104 | $this->dbh->fetchInto($this->result, $arr, $fetchmode); |
---|
1105 | } |
---|
1106 | } |
---|
1107 | } |
---|
1108 | if ($this->row_counter >= ($this->limit_from + $this->limit_count)) |
---|
1109 | { |
---|
1110 | if ($this->autofree) { |
---|
1111 | $this->free(); |
---|
1112 | } |
---|
1113 | $tmp = null; |
---|
1114 | return $tmp; |
---|
1115 | } |
---|
1116 | if ($this->dbh->features['limit'] === 'emulate') { |
---|
1117 | $rownum = $this->row_counter; |
---|
1118 | } |
---|
1119 | $this->row_counter++; |
---|
1120 | } |
---|
1121 | $res = $this->dbh->fetchInto($this->result, $arr, $fetchmode, $rownum); |
---|
1122 | if ($res === DB_OK) { |
---|
1123 | if (isset($object_class)) { |
---|
1124 | // The default mode is specified in the |
---|
1125 | // DB_common::fetchmode_object_class property |
---|
1126 | if ($object_class == 'stdClass') { |
---|
1127 | $arr = (object) $arr; |
---|
1128 | } else { |
---|
1129 | $arr = &new $object_class($arr); |
---|
1130 | } |
---|
1131 | } |
---|
1132 | return $arr; |
---|
1133 | } |
---|
1134 | if ($res == null && $this->autofree) { |
---|
1135 | $this->free(); |
---|
1136 | } |
---|
1137 | return $res; |
---|
1138 | } |
---|
1139 | |
---|
1140 | // }}} |
---|
1141 | // {{{ fetchInto() |
---|
1142 | |
---|
1143 | /** |
---|
1144 | * Fetch a row of data into an array which is passed by reference |
---|
1145 | * |
---|
1146 | * The type of array returned can be controlled either by setting this |
---|
1147 | * method's <var>$fetchmode</var> parameter or by changing the default |
---|
1148 | * fetch mode setFetchMode() before calling this method. |
---|
1149 | * |
---|
1150 | * There are two options for standardizing the information returned |
---|
1151 | * from databases, ensuring their values are consistent when changing |
---|
1152 | * DBMS's. These portability options can be turned on when creating a |
---|
1153 | * new DB object or by using setOption(). |
---|
1154 | * |
---|
1155 | * + <var>DB_PORTABILITY_LOWERCASE</var> |
---|
1156 | * convert names of fields to lower case |
---|
1157 | * |
---|
1158 | * + <var>DB_PORTABILITY_RTRIM</var> |
---|
1159 | * right trim the data |
---|
1160 | * |
---|
1161 | * @param array &$arr the variable where the data should be placed |
---|
1162 | * @param int $fetchmode the constant indicating how to format the data |
---|
1163 | * @param int $rownum the row number to fetch (index starts at 0) |
---|
1164 | * |
---|
1165 | * @return mixed DB_OK if a row is processed, NULL when the end of the |
---|
1166 | * result set is reached or a DB_Error object on failure |
---|
1167 | * |
---|
1168 | * @see DB_common::setOption(), DB_common::setFetchMode() |
---|
1169 | */ |
---|
1170 | function fetchInto(&$arr, $fetchmode = DB_FETCHMODE_DEFAULT, $rownum = null) |
---|
1171 | { |
---|
1172 | if ($fetchmode === DB_FETCHMODE_DEFAULT) { |
---|
1173 | $fetchmode = $this->fetchmode; |
---|
1174 | } |
---|
1175 | if ($fetchmode === DB_FETCHMODE_OBJECT) { |
---|
1176 | $fetchmode = DB_FETCHMODE_ASSOC; |
---|
1177 | $object_class = $this->fetchmode_object_class; |
---|
1178 | } |
---|
1179 | if ($this->limit_from !== null) { |
---|
1180 | if ($this->row_counter === null) { |
---|
1181 | $this->row_counter = $this->limit_from; |
---|
1182 | // Skip rows |
---|
1183 | if ($this->dbh->features['limit'] === false) { |
---|
1184 | $i = 0; |
---|
1185 | while ($i++ < $this->limit_from) { |
---|
1186 | $this->dbh->fetchInto($this->result, $arr, $fetchmode); |
---|
1187 | } |
---|
1188 | } |
---|
1189 | } |
---|
1190 | if ($this->row_counter >= ( |
---|
1191 | $this->limit_from + $this->limit_count)) |
---|
1192 | { |
---|
1193 | if ($this->autofree) { |
---|
1194 | $this->free(); |
---|
1195 | } |
---|
1196 | return null; |
---|
1197 | } |
---|
1198 | if ($this->dbh->features['limit'] === 'emulate') { |
---|
1199 | $rownum = $this->row_counter; |
---|
1200 | } |
---|
1201 | |
---|
1202 | $this->row_counter++; |
---|
1203 | } |
---|
1204 | $res = $this->dbh->fetchInto($this->result, $arr, $fetchmode, $rownum); |
---|
1205 | if ($res === DB_OK) { |
---|
1206 | if (isset($object_class)) { |
---|
1207 | // default mode specified in the |
---|
1208 | // DB_common::fetchmode_object_class property |
---|
1209 | if ($object_class == 'stdClass') { |
---|
1210 | $arr = (object) $arr; |
---|
1211 | } else { |
---|
1212 | $arr = new $object_class($arr); |
---|
1213 | } |
---|
1214 | } |
---|
1215 | return DB_OK; |
---|
1216 | } |
---|
1217 | if ($res == null && $this->autofree) { |
---|
1218 | $this->free(); |
---|
1219 | } |
---|
1220 | return $res; |
---|
1221 | } |
---|
1222 | |
---|
1223 | // }}} |
---|
1224 | // {{{ numCols() |
---|
1225 | |
---|
1226 | /** |
---|
1227 | * Get the the number of columns in a result set |
---|
1228 | * |
---|
1229 | * @return int the number of columns. A DB_Error object on failure. |
---|
1230 | */ |
---|
1231 | function numCols() |
---|
1232 | { |
---|
1233 | return $this->dbh->numCols($this->result); |
---|
1234 | } |
---|
1235 | |
---|
1236 | // }}} |
---|
1237 | // {{{ numRows() |
---|
1238 | |
---|
1239 | /** |
---|
1240 | * Get the number of rows in a result set |
---|
1241 | * |
---|
1242 | * @return int the number of rows. A DB_Error object on failure. |
---|
1243 | */ |
---|
1244 | function numRows() |
---|
1245 | { |
---|
1246 | if ($this->dbh->features['numrows'] === 'emulate' |
---|
1247 | && $this->dbh->options['portability'] & DB_PORTABILITY_NUMROWS) |
---|
1248 | { |
---|
1249 | if ($this->dbh->features['prepare']) { |
---|
1250 | $res = $this->dbh->query($this->query, $this->parameters); |
---|
1251 | } else { |
---|
1252 | $res = $this->dbh->query($this->query); |
---|
1253 | } |
---|
1254 | if (DB::isError($res)) { |
---|
1255 | return $res; |
---|
1256 | } |
---|
1257 | $i = 0; |
---|
1258 | while ($res->fetchInto($tmp, DB_FETCHMODE_ORDERED)) { |
---|
1259 | $i++; |
---|
1260 | } |
---|
1261 | return $i; |
---|
1262 | } else { |
---|
1263 | return $this->dbh->numRows($this->result); |
---|
1264 | } |
---|
1265 | } |
---|
1266 | |
---|
1267 | // }}} |
---|
1268 | // {{{ nextResult() |
---|
1269 | |
---|
1270 | /** |
---|
1271 | * Get the next result if a batch of queries was executed |
---|
1272 | * |
---|
1273 | * @return bool true if a new result is available or false if not |
---|
1274 | */ |
---|
1275 | function nextResult() |
---|
1276 | { |
---|
1277 | return $this->dbh->nextResult($this->result); |
---|
1278 | } |
---|
1279 | |
---|
1280 | // }}} |
---|
1281 | // {{{ free() |
---|
1282 | |
---|
1283 | /** |
---|
1284 | * Frees the resources allocated for this result set |
---|
1285 | * |
---|
1286 | * @return bool true on success. A DB_Error object on failure. |
---|
1287 | */ |
---|
1288 | function free() |
---|
1289 | { |
---|
1290 | $err = $this->dbh->freeResult($this->result); |
---|
1291 | if (DB::isError($err)) { |
---|
1292 | return $err; |
---|
1293 | } |
---|
1294 | $this->result = false; |
---|
1295 | $this->statement = false; |
---|
1296 | return true; |
---|
1297 | } |
---|
1298 | |
---|
1299 | // }}} |
---|
1300 | // {{{ tableInfo() |
---|
1301 | |
---|
1302 | /** |
---|
1303 | * @see DB_common::tableInfo() |
---|
1304 | * @deprecated Method deprecated some time before Release 1.2 |
---|
1305 | */ |
---|
1306 | function tableInfo($mode = null) |
---|
1307 | { |
---|
1308 | if (is_string($mode)) { |
---|
1309 | return $this->dbh->raiseError(DB_ERROR_NEED_MORE_DATA); |
---|
1310 | } |
---|
1311 | return $this->dbh->tableInfo($this, $mode); |
---|
1312 | } |
---|
1313 | |
---|
1314 | // }}} |
---|
1315 | // {{{ getQuery() |
---|
1316 | |
---|
1317 | /** |
---|
1318 | * Determine the query string that created this result |
---|
1319 | * |
---|
1320 | * @return string the query string |
---|
1321 | * |
---|
1322 | * @since Method available since Release 1.7.0 |
---|
1323 | */ |
---|
1324 | function getQuery() |
---|
1325 | { |
---|
1326 | return $this->query; |
---|
1327 | } |
---|
1328 | |
---|
1329 | // }}} |
---|
1330 | // {{{ getRowCounter() |
---|
1331 | |
---|
1332 | /** |
---|
1333 | * Tells which row number is currently being processed |
---|
1334 | * |
---|
1335 | * @return integer the current row being looked at. Starts at 1. |
---|
1336 | */ |
---|
1337 | function getRowCounter() |
---|
1338 | { |
---|
1339 | return $this->row_counter; |
---|
1340 | } |
---|
1341 | |
---|
1342 | // }}} |
---|
1343 | } |
---|
1344 | |
---|
1345 | // }}} |
---|
1346 | // {{{ class DB_row |
---|
1347 | |
---|
1348 | /** |
---|
1349 | * PEAR DB Row Object |
---|
1350 | * |
---|
1351 | * The object contains a row of data from a result set. Each column's data |
---|
1352 | * is placed in a property named for the column. |
---|
1353 | * |
---|
1354 | * @category Database |
---|
1355 | * @package DB |
---|
1356 | * @author Stig Bakken <ssb@php.net> |
---|
1357 | * @copyright 1997-2005 The PHP Group |
---|
1358 | * @license http://www.php.net/license/3_0.txt PHP License 3.0 |
---|
1359 | * @version Release: @package_version@ |
---|
1360 | * @link http://pear.php.net/package/DB |
---|
1361 | * @see DB_common::setFetchMode() |
---|
1362 | */ |
---|
1363 | class DB_row |
---|
1364 | { |
---|
1365 | // {{{ constructor |
---|
1366 | |
---|
1367 | /** |
---|
1368 | * The constructor places a row's data into properties of this object |
---|
1369 | * |
---|
1370 | * @param array the array containing the row's data |
---|
1371 | * |
---|
1372 | * @return void |
---|
1373 | */ |
---|
1374 | function DB_row(&$arr) |
---|
1375 | { |
---|
1376 | foreach ($arr as $key => $value) { |
---|
1377 | $this->$key = &$arr[$key]; |
---|
1378 | } |
---|
1379 | } |
---|
1380 | |
---|
1381 | // }}} |
---|
1382 | } |
---|
1383 | |
---|
1384 | // }}} |
---|
1385 | |
---|
1386 | /* |
---|
1387 | * Local variables: |
---|
1388 | * tab-width: 4 |
---|
1389 | * c-basic-offset: 4 |
---|
1390 | * End: |
---|
1391 | */ |
---|
1392 | |
---|
1393 | ?> |
---|