5 // Justin Vincent (justin@visunet.ie)
6 // http://php.justinvincent.com
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);
13 if (!defined('SAVEQUERIES'))
14 define('SAVEQUERIES', false);
18 var $show_errors = true;
36 var $optiongroup_options;
39 // ==================================================================
40 // DB Constructor - connects to the server and selects a database
42 function wpdb($dbuser, $dbpassword, $dbname, $dbhost) {
43 return $this->__construct($dbuser, $dbpassword, $dbname, $dbhost);
46 function __construct($dbuser, $dbpassword, $dbname, $dbhost) {
47 register_shutdown_function(array(&$this, "__destruct"));
49 $this->dbh = @mysql_connect($dbhost, $dbuser, $dbpassword);
52 <h1>Error establishing a database connection</h1>
53 <p>This either means that the username and password information in your <code>wp-config.php</code> file is incorrect or we can't contact the database server at <code>$dbhost</code>. This could mean your host's database server is down.</p>
55 <li>Are you sure you have the correct username and password?</li>
56 <li>Are you sure that you have typed the correct hostname?</li>
57 <li>Are you sure that the database server is running?</li>
59 <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>
63 $this->select($dbname);
66 function __destruct() {
70 // ==================================================================
71 // Select a DB (if another one needs to be selected)
73 function select($db) {
74 if (!@mysql_select_db($db, $this->dbh)) {
76 <h1>Can’t select database</h1>
77 <p>We were able to connect to the database server (which means your username and password is okay) but not able to select the <code>$db</code> database.</p>
79 <li>Are you sure it exists?</li>
80 <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>
82 <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>");
86 // ====================================================================
87 // Format a string correctly for safe insert under all PHP conditions
89 function escape($string) {
90 return addslashes( $string ); // Disable rest for now, causing problems
91 if( !$this->dbh || version_compare( phpversion(), '4.3.0' ) == '-1' )
92 return mysql_escape_string( $string );
94 return mysql_real_escape_string( $string, $this->dbh );
97 // ==================================================================
98 // Print SQL/DB error.
100 function print_error($str = '') {
102 if (!$str) $str = mysql_error();
104 array ('query' => $this->last_query, 'error_str' => $str);
106 $str = htmlspecialchars($str, ENT_QUOTES);
107 $query = htmlspecialchars($this->last_query, ENT_QUOTES);
108 // Is error output turned on or not..
109 if ( $this->show_errors ) {
110 // If there is an error then take note of it
111 print "<div id='error'>
112 <p class='wpdberror'><strong>WordPress database error:</strong> [$str]<br />
113 <code>$query</code></p>
120 // ==================================================================
121 // Turn error handling on or off..
123 function show_errors() {
124 $this->show_errors = true;
127 function hide_errors() {
128 $this->show_errors = false;
131 // ==================================================================
132 // Kill cached query results
135 $this->last_result = array();
136 $this->col_info = null;
137 $this->last_query = null;
140 // ==================================================================
141 // Basic Query - see docs for more detail
143 function query($query) {
144 // filter the query, if filters are available
145 // NOTE: some queries are made before the plugins have been loaded, and thus cannot be filtered with this method
146 if ( function_exists('apply_filters') )
147 $query = apply_filters('query', $query);
153 // Log how the function was called
154 $this->func_call = "\$db->query(\"$query\")";
156 // Keep track of the last query for debug..
157 $this->last_query = $query;
159 // Perform the query via std mysql_query function..
161 $this->timer_start();
163 $this->result = @mysql_query($query, $this->dbh);
164 ++$this->num_queries;
167 $this->queries[] = array( $query, $this->timer_stop() );
169 // If there is an error then take note of it..
170 if ( mysql_error() ) {
171 $this->print_error();
175 if ( preg_match("/^\\s*(insert|delete|update|replace) /i",$query) ) {
176 $this->rows_affected = mysql_affected_rows();
177 // Take note of the insert_id
178 if ( preg_match("/^\\s*(insert|replace) /i",$query) ) {
179 $this->insert_id = mysql_insert_id($this->dbh);
181 // Return number of rows affected
182 $return_val = $this->rows_affected;
185 while ($i < @mysql_num_fields($this->result)) {
186 $this->col_info[$i] = @mysql_fetch_field($this->result);
190 while ( $row = @mysql_fetch_object($this->result) ) {
191 $this->last_result[$num_rows] = $row;
195 @mysql_free_result($this->result);
197 // Log number of rows the query returned
198 $this->num_rows = $num_rows;
200 // Return number of rows selected
201 $return_val = $this->num_rows;
207 // ==================================================================
208 // Get one variable from the DB - see docs for more detail
210 function get_var($query=null, $x = 0, $y = 0) {
211 $this->func_call = "\$db->get_var(\"$query\",$x,$y)";
213 $this->query($query);
215 // Extract var out of cached results based x,y vals
216 if ( $this->last_result[$y] ) {
217 $values = array_values(get_object_vars($this->last_result[$y]));
220 // If there is a value return it else return null
221 return (isset($values[$x]) && $values[$x]!=='') ? $values[$x] : null;
224 // ==================================================================
225 // Get one row from the DB - see docs for more detail
227 function get_row($query = null, $output = OBJECT, $y = 0) {
228 $this->func_call = "\$db->get_row(\"$query\",$output,$y)";
230 $this->query($query);
232 if ( $output == OBJECT ) {
233 return $this->last_result[$y] ? $this->last_result[$y] : null;
234 } elseif ( $output == ARRAY_A ) {
235 return $this->last_result[$y] ? get_object_vars($this->last_result[$y]) : null;
236 } elseif ( $output == ARRAY_N ) {
237 return $this->last_result[$y] ? array_values(get_object_vars($this->last_result[$y])) : null;
239 $this->print_error(" \$db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N");
243 // ==================================================================
244 // Function to get 1 column from the cached result set based in X index
245 // se docs for usage and info
247 function get_col($query = null , $x = 0) {
249 $this->query($query);
251 // Extract the column values
252 for ( $i=0; $i < count($this->last_result); $i++ ) {
253 $new_array[$i] = $this->get_var(null, $x, $i);
258 // ==================================================================
259 // Return the the query as a result set - see docs for more details
261 function get_results($query = null, $output = OBJECT) {
262 $this->func_call = "\$db->get_results(\"$query\", $output)";
265 $this->query($query);
267 // Send back array of objects. Each row is an object
268 if ( $output == OBJECT ) {
269 return $this->last_result;
270 } elseif ( $output == ARRAY_A || $output == ARRAY_N ) {
271 if ( $this->last_result ) {
273 foreach( $this->last_result as $row ) {
274 $new_array[$i] = (array) $row;
275 if ( $output == ARRAY_N ) {
276 $new_array[$i] = array_values($new_array[$i]);
288 // ==================================================================
289 // Function to get column meta data info pertaining to the last query
290 // see docs for more info and usage
292 function get_col_info($info_type = 'name', $col_offset = -1) {
293 if ( $this->col_info ) {
294 if ( $col_offset == -1 ) {
296 foreach($this->col_info as $col ) {
297 $new_array[$i] = $col->{$info_type};
302 return $this->col_info[$col_offset]->{$info_type};
307 function timer_start() {
308 $mtime = microtime();
309 $mtime = explode(' ', $mtime);
310 $this->time_start = $mtime[1] + $mtime[0];
314 function timer_stop($precision = 3) {
315 $mtime = microtime();
316 $mtime = explode(' ', $mtime);
317 $time_end = $mtime[1] + $mtime[0];
318 $time_total = $time_end - $this->time_start;
322 function bail($message) { // Just wraps errors in a nice header and footer
323 if ( !$this->show_errors )
325 header( 'Content-Type: text/html; charset=utf-8');
327 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
328 <html xmlns="http://www.w3.org/1999/xhtml">
330 <title>WordPress › Error</title>
331 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
332 <style media="screen" type="text/css">
340 font-family: Georgia, "Times New Roman", Times, serif;
349 font-weight: lighter;
362 padding: 5px 5px 5px 20px;
371 <h1 id="logo"><img alt="WordPress" src="http://static.wordpress.org/logo.png" /></h1>
374 echo "</body></html>";
379 $wpdb = new wpdb(DB_USER, DB_PASSWORD, DB_NAME, DB_HOST);