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1 <?php 2 // WordPress DB Class 3 4 // ORIGINAL CODE FROM: 5 // Justin Vincent (justin@visunet.ie) 6 // http://php.justinvincent.com 7 8 define('EZSQL_VERSION', 'WP1.25'); 9 define('OBJECT', 'OBJECT', true); 10 define('ARRAY_A', 'ARRAY_A', false); 11 define('ARRAY_N', 'ARRAY_N', false); 12 13 if (!defined('SAVEQUERIES')) 14 define('SAVEQUERIES', false); 15 16 class wpdb { 17 18 var $show_errors = true; 19 var $num_queries = 0; 20 var $last_query; 21 var $col_info; 22 var $queries; 23 24 // Our tables 25 var $posts; 26 var $users; 27 var $categories; 28 var $post2cat; 29 var $comments; 30 var $links; 31 var $linkcategories; 32 var $options; 33 var $optiontypes; 34 var $optionvalues; 35 var $optiongroups; 36 var $optiongroup_options; 37 var $postmeta; 38 39 // ================================================================== 40 // DB Constructor - connects to the server and selects a database 41 42 function wpdb($dbuser, $dbpassword, $dbname, $dbhost) { 43 $this->dbh = @mysql_connect($dbhost, $dbuser, $dbpassword); 44 if (!$this->dbh) { 45 $this->bail(" 46 <h1>Error establishing a database connection</h1> 47 <p>This either means that the username and password information in your <code>wp-config.php</code> file is incorrect or we can't contact the database server at <code>$dbhost</code>. This could mean your host's database server is down.</p> 48 <ul> 49 <li>Are you sure you have the correct username and password?</li> 50 <li>Are you sure that you have typed the correct hostname?</li> 51 <li>Are you sure that the database server is running?</li> 52 </ul> 53 <p>If you're unsure what these terms mean you should probably contact your host. If you still need help you can always visit the <a href='http://wordpress.org/support/'>WordPress Support Forums</a>.</p> 54 "); 55 } 56 57 $this->select($dbname); 58 } 59 60 // ================================================================== 61 // Select a DB (if another one needs to be selected) 62 63 function select($db) { 64 if (!@mysql_select_db($db, $this->dbh)) { 65 $this->bail(" 66 <h1>Can’t select database</h1> 67 <p>We were able to connect to the database server (which means your username and password is okay) but not able to select the <code>$db</code> database.</p> 68 <ul> 69 <li>Are you sure it exists?</li> 70 <li>On some systems the name of your database is prefixed with your username, so it would be like username_wordpress. Could that be the problem?</li> 71 </ul> 72 <p>If you don't know how to setup a database you should <strong>contact your host</strong>. If all else fails you may find help at the <a href='http://wordpress.org/support/'>WordPress Support Forums</a>.</p>"); 73 } 74 } 75 76 // ==================================================================== 77 // Format a string correctly for safe insert under all PHP conditions 78 79 function escape($string) { 80 return addslashes( $string ); // Disable rest for now, causing problems 81 if( !$this->dbh || version_compare( phpversion(), '4.3.0' ) == '-1' ) 82 return mysql_escape_string( $string ); 83 else 84 return mysql_real_escape_string( $string, $this->dbh ); 85 } 86 87 // ================================================================== 88 // Print SQL/DB error. 89 90 function print_error($str = '') { 91 global $EZSQL_ERROR; 92 if (!$str) $str = mysql_error(); 93 $EZSQL_ERROR[] = 94 array ('query' => $this->last_query, 'error_str' => $str); 95 96 // Is error output turned on or not.. 97 if ( $this->show_errors ) { 98 // If there is an error then take note of it 99 print "<div id='error'> 100 <p class='wpdberror'><strong>WordPress database error:</strong> [$str]<br /> 101 <code>$this->last_query</code></p> 102 </div>"; 103 } else { 104 return false; 105 } 106 } 107 108 // ================================================================== 109 // Turn error handling on or off.. 110 111 function show_errors() { 112 $this->show_errors = true; 113 } 114 115 function hide_errors() { 116 $this->show_errors = false; 117 } 118 119 // ================================================================== 120 // Kill cached query results 121 122 function flush() { 123 $this->last_result = null; 124 $this->col_info = null; 125 $this->last_query = null; 126 } 127 128 // ================================================================== 129 // Basic Query - see docs for more detail 130 131 function query($query) { 132 // initialise return 133 $return_val = 0; 134 $this->flush(); 135 136 // Log how the function was called 137 $this->func_call = "\$db->query(\"$query\")"; 138 139 // Keep track of the last query for debug.. 140 $this->last_query = $query; 141 142 // Perform the query via std mysql_query function.. 143 if (SAVEQUERIES) 144 $this->timer_start(); 145 146 $this->result = @mysql_query($query, $this->dbh); 147 ++$this->num_queries; 148 149 if (SAVEQUERIES) 150 $this->queries[] = array( $query, $this->timer_stop() ); 151 152 // If there is an error then take note of it.. 153 if ( mysql_error() ) { 154 $this->print_error(); 155 return false; 156 } 157 158 if ( preg_match("/^\\s*(insert|delete|update|replace) /i",$query) ) { 159 $this->rows_affected = mysql_affected_rows(); 160 // Take note of the insert_id 161 if ( preg_match("/^\\s*(insert|replace) /i",$query) ) { 162 $this->insert_id = mysql_insert_id($this->dbh); 163 } 164 // Return number of rows affected 165 $return_val = $this->rows_affected; 166 } else { 167 $i = 0; 168 while ($i < @mysql_num_fields($this->result)) { 169 $this->col_info[$i] = @mysql_fetch_field($this->result); 170 $i++; 171 } 172 $num_rows = 0; 173 while ( $row = @mysql_fetch_object($this->result) ) { 174 $this->last_result[$num_rows] = $row; 175 $num_rows++; 176 } 177 178 @mysql_free_result($this->result); 179 180 // Log number of rows the query returned 181 $this->num_rows = $num_rows; 182 183 // Return number of rows selected 184 $return_val = $this->num_rows; 185 } 186 187 return $return_val; 188 } 189 190 // ================================================================== 191 // Get one variable from the DB - see docs for more detail 192 193 function get_var($query=null, $x = 0, $y = 0) { 194 $this->func_call = "\$db->get_var(\"$query\",$x,$y)"; 195 if ( $query ) 196 $this->query($query); 197 198 // Extract var out of cached results based x,y vals 199 if ( $this->last_result[$y] ) { 200 $values = array_values(get_object_vars($this->last_result[$y])); 201 } 202 203 // If there is a value return it else return null 204 return (isset($values[$x]) && $values[$x]!=='') ? $values[$x] : null; 205 } 206 207 // ================================================================== 208 // Get one row from the DB - see docs for more detail 209 210 function get_row($query = null, $output = OBJECT, $y = 0) { 211 $this->func_call = "\$db->get_row(\"$query\",$output,$y)"; 212 if ( $query ) 213 $this->query($query); 214 215 if ( $output == OBJECT ) { 216 return $this->last_result[$y] ? $this->last_result[$y] : null; 217 } elseif ( $output == ARRAY_A ) { 218 return $this->last_result[$y] ? get_object_vars($this->last_result[$y]) : null; 219 } elseif ( $output == ARRAY_N ) { 220 return $this->last_result[$y] ? array_values(get_object_vars($this->last_result[$y])) : null; 221 } else { 222 $this->print_error(" \$db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N"); 223 } 224 } 225 226 // ================================================================== 227 // Function to get 1 column from the cached result set based in X index 228 // se docs for usage and info 229 230 function get_col($query = null , $x = 0) { 231 if ( $query ) 232 $this->query($query); 233 234 // Extract the column values 235 for ( $i=0; $i < count($this->last_result); $i++ ) { 236 $new_array[$i] = $this->get_var(null, $x, $i); 237 } 238 return $new_array; 239 } 240 241 // ================================================================== 242 // Return the the query as a result set - see docs for more details 243 244 function get_results($query = null, $output = OBJECT) { 245 $this->func_call = "\$db->get_results(\"$query\", $output)"; 246 247 if ( $query ) 248 $this->query($query); 249 250 // Send back array of objects. Each row is an object 251 if ( $output == OBJECT ) { 252 return $this->last_result; 253 } elseif ( $output == ARRAY_A || $output == ARRAY_N ) { 254 if ( $this->last_result ) { 255 $i = 0; 256 foreach( $this->last_result as $row ) { 257 $new_array[$i] = (array) $row; 258 if ( $output == ARRAY_N ) { 259 $new_array[$i] = array_values($new_array[$i]); 260 } 261 $i++; 262 } 263 return $new_array; 264 } else { 265 return null; 266 } 267 } 268 } 269 270 271 // ================================================================== 272 // Function to get column meta data info pertaining to the last query 273 // see docs for more info and usage 274 275 function get_col_info($info_type = 'name', $col_offset = -1) { 276 if ( $this->col_info ) { 277 if ( $col_offset == -1 ) { 278 $i = 0; 279 foreach($this->col_info as $col ) { 280 $new_array[$i] = $col->{$info_type}; 281 $i++; 282 } 283 return $new_array; 284 } else { 285 return $this->col_info[$col_offset]->{$info_type}; 286 } 287 } 288 } 289 290 function timer_start() { 291 $mtime = microtime(); 292 $mtime = explode(' ', $mtime); 293 $this->time_start = $mtime[1] + $mtime[0]; 294 return true; 295 } 296 297 function timer_stop($precision = 3) { 298 $mtime = microtime(); 299 $mtime = explode(' ', $mtime); 300 $time_end = $mtime[1] + $mtime[0]; 301 $time_total = $time_end - $this->time_start; 302 return $time_total; 303 } 304 305 function bail($message) { // Just wraps errors in a nice header and footer 306 if ( !$this->show_errors ) 307 return false; 308 309 wp_die($message); 310 } 311 } 312 313 $wpdb = new wpdb(DB_USER, DB_PASSWORD, DB_NAME, DB_HOST); 314 ?>
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| Generated: Sat Jul 15 11:57:04 2006 | Courtesy of Taragana |