9a84126d9f
git-svn-id: https://develop.svn.wordpress.org/trunk@964 602fd350-edb4-49c9-b593-d223f7449a82
336 lines
9.8 KiB
PHP
336 lines
9.8 KiB
PHP
<?php
|
|
// ==================================================================
|
|
// Author: Justin Vincent (justin@visunet.ie)
|
|
// Web: http://php.justinvincent.com
|
|
// Name: ezSQL
|
|
// Desc: Class to make it very easy to deal with mySQL database connections.
|
|
// WordPress is using this class to make the code cleaner and faster.
|
|
// We highly recommend it.
|
|
// We have modified the HTML it returns slightly.
|
|
|
|
define('EZSQL_VERSION', '1.21');
|
|
define('OBJECT', 'OBJECT', true);
|
|
define('ARRAY_A', 'ARRAY_A', true);
|
|
define('ARRAY_N', 'ARRAY_N', true);
|
|
define('SAVEQUERIES', true);
|
|
|
|
// The Main Class, renamed to avoid conflicts.
|
|
|
|
class wpdb {
|
|
|
|
var $debug_called;
|
|
var $vardump_called;
|
|
var $show_errors = true;
|
|
var $querycount;
|
|
|
|
// ==================================================================
|
|
// DB Constructor - connects to the server and selects a database
|
|
|
|
function wpdb($dbuser, $dbpassword, $dbname, $dbhost) {
|
|
$this->dbh = @mysql_connect($dbhost,$dbuser,$dbpassword);
|
|
if ( ! $this->dbh ) {
|
|
die("<div>
|
|
<p><strong>Error establishing a database connection!</strong> This probably means that the connection information in your <code>wp-config.php</code> file is incorrect. Double check it and try again.</p>
|
|
<ul>
|
|
<li>Are you sure you have the correct user/password?</li>
|
|
<li>Are you sure that you have typed the correct hostname?</li>
|
|
<li>Are you sure that the database server is running?</li>
|
|
</ul>
|
|
<p><a href='http://wordpress.org/support/'>WordPress Support Forums</a></p>
|
|
</div>");
|
|
}
|
|
|
|
$this->select($dbname);
|
|
$this->querycount = 0;
|
|
}
|
|
|
|
// ==================================================================
|
|
// Select a DB (if another one needs to be selected)
|
|
|
|
function select($db) {
|
|
if ( !@mysql_select_db($db,$this->dbh)) {
|
|
die("
|
|
<p>We're having a little trouble selecting the proper database for WordPress.</p>
|
|
<ul>
|
|
<li>Are you sure it exists?</li>
|
|
<li>Your database name is currently specified as <code>" . DB_NAME ."</code>. Is this correct?</li>
|
|
<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>
|
|
</ul>
|
|
<p><a href='http://wordpress.org/support/'>WordPress Support Forums</a></p>");
|
|
}
|
|
}
|
|
|
|
// ====================================================================
|
|
// Format a string correctly for safe insert under all PHP conditions
|
|
|
|
function escape($str) {
|
|
return mysql_escape_string(stripslashes($str));
|
|
}
|
|
|
|
// ==================================================================
|
|
// Print SQL/DB error.
|
|
|
|
function print_error($str = '') {
|
|
// All errors go to the global error array $EZSQL_ERROR..
|
|
global $EZSQL_ERROR;
|
|
|
|
// If no special error string then use mysql default..
|
|
if ( !$str ) $str = mysql_error();
|
|
|
|
// Log this error to the global array..
|
|
$EZSQL_ERROR[] = array
|
|
(
|
|
'query' => $this->last_query,
|
|
'error_str' => $str
|
|
);
|
|
|
|
// Is error output turned on or not..
|
|
if ( $this->show_errors ) {
|
|
// If there is an error then take note of it
|
|
print "<div id='error'>
|
|
<p><strong>SQL/DB Error:</strong><br />
|
|
[<span style='color: #007;'>$str</span>]<br />
|
|
<code>$this->last_query</code></p>
|
|
</div>";
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
}
|
|
|
|
// ==================================================================
|
|
// Turn error handling on or off..
|
|
|
|
function show_errors() {
|
|
$this->show_errors = true;
|
|
}
|
|
|
|
function hide_errors() {
|
|
$this->show_errors = false;
|
|
}
|
|
|
|
// ==================================================================
|
|
// Kill cached query results
|
|
|
|
function flush() {
|
|
// Get rid of these
|
|
$this->last_result = null;
|
|
$this->col_info = null;
|
|
$this->last_query = null;
|
|
|
|
}
|
|
|
|
// ==================================================================
|
|
// Basic Query - see docs for more detail
|
|
|
|
function query($query) {
|
|
|
|
// Flush cached values..
|
|
$this->flush();
|
|
|
|
// Log how the function was called
|
|
$this->func_call = "\$db->query(\"$query\")";
|
|
|
|
// Keep track of the last query for debug..
|
|
$this->last_query = $query;
|
|
|
|
// Perform the query via std mysql_query function..
|
|
$this->result = mysql_query($query, $this->dbh);
|
|
++$this->querycount;
|
|
if (SAVEQUERIES) {
|
|
$this->savedqueries[] = $query;
|
|
}
|
|
|
|
// If there was an insert, delete or update see how many rows were affected
|
|
// (Also, If there there was an insert take note of the insert_id
|
|
$query_type = array('insert','delete','update','replace');
|
|
|
|
// loop through the above array
|
|
foreach ( $query_type as $word ) {
|
|
// This is true if the query starts with insert, delete or update
|
|
if ( preg_match("/^\\s*$word /i",$query) ) {
|
|
$this->rows_affected = mysql_affected_rows();
|
|
// This gets the insert ID
|
|
if ( $word == 'insert' || $word == 'replace' ) {
|
|
$this->insert_id = mysql_insert_id($this->dbh);
|
|
}
|
|
$this->result = false;
|
|
}
|
|
}
|
|
|
|
if ( mysql_error() ) { // If there is an error then take note of it..
|
|
$this->print_error();
|
|
} else {
|
|
// In other words if this was a select statement..
|
|
if ( $this->result ) {
|
|
// =======================================================
|
|
// Take note of column info
|
|
|
|
$i=0;
|
|
while ($i < @mysql_num_fields($this->result)) {
|
|
$this->col_info[$i] = @mysql_fetch_field($this->result);
|
|
$i++;
|
|
}
|
|
|
|
// =======================================================
|
|
// Store Query Results
|
|
|
|
$i=0;
|
|
while ( $row = @mysql_fetch_object($this->result) ) {
|
|
// Store relults as an objects within main array
|
|
$this->last_result[$i] = $row;
|
|
$i++;
|
|
}
|
|
|
|
// Log number of rows the query returned
|
|
$this->num_rows = $i;
|
|
|
|
@mysql_free_result($this->result);
|
|
|
|
|
|
// If there were results then return true for $db->query
|
|
if ( $i ) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
} else { // Update insert etc. was good..
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// ==================================================================
|
|
// Get one variable from the DB - see docs for more detail
|
|
|
|
function get_var($query=null, $x=0, $y=0) {
|
|
|
|
// Log how the function was called
|
|
$this->func_call = "\$db->get_var(\"$query\",$x,$y)";
|
|
|
|
// If there is a query then perform it if not then use cached results..
|
|
if ( $query ) {
|
|
$this->query($query);
|
|
}
|
|
|
|
// Extract var out of cached results based x,y vals
|
|
if ( $this->last_result[$y] ) {
|
|
$values = array_values(get_object_vars($this->last_result[$y]));
|
|
}
|
|
|
|
// If there is a value return it else return null
|
|
return (isset($values[$x]) && $values[$x]!=='') ? $values[$x] : null;
|
|
}
|
|
|
|
// ==================================================================
|
|
// Get one row from the DB - see docs for more detail
|
|
|
|
function get_row($query=null, $output=OBJECT, $y=0) {
|
|
|
|
// Log how the function was called
|
|
$this->func_call = "\$db->get_row(\"$query\",$output,$y)";
|
|
|
|
// If there is a query then perform it if not then use cached results..
|
|
if ( $query ) {
|
|
$this->query($query);
|
|
}
|
|
|
|
// If the output is an object then return object using the row offset..
|
|
if ( $output == OBJECT ) {
|
|
return $this->last_result[$y]?$this->last_result[$y]:null;
|
|
}
|
|
// If the output is an associative array then return row as such..
|
|
elseif ( $output == ARRAY_A ) {
|
|
return $this->last_result[$y]?get_object_vars($this->last_result[$y]):null;
|
|
}
|
|
// If the output is an numerical array then return row as such..
|
|
elseif ( $output == ARRAY_N ) {
|
|
return $this->last_result[$y]?array_values(get_object_vars($this->last_result[$y])):null;
|
|
}
|
|
// If invalid output type was specified..
|
|
else {
|
|
$this->print_error(" \$db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N");
|
|
}
|
|
|
|
}
|
|
|
|
// ==================================================================
|
|
// Function to get 1 column from the cached result set based in X index
|
|
// se docs for usage and info
|
|
|
|
function get_col($query=null,$x=0) {
|
|
// If there is a query then perform it if not then use cached results..
|
|
if ( $query ) {
|
|
$this->query($query);
|
|
}
|
|
// Extract the column values
|
|
for ( $i=0; $i < count($this->last_result); $i++ ) {
|
|
$new_array[$i] = $this->get_var(null,$x,$i);
|
|
}
|
|
return $new_array;
|
|
}
|
|
|
|
// ==================================================================
|
|
// Return the the query as a result set - see docs for more details
|
|
|
|
function get_results($query=null, $output = OBJECT){
|
|
|
|
// Log how the function was called
|
|
$this->func_call = "\$db->get_results(\"$query\", $output)";
|
|
|
|
// If there is a query then perform it if not then use cached results..
|
|
if ( $query ) {
|
|
$this->query($query);
|
|
}
|
|
|
|
// Send back array of objects. Each row is an object
|
|
if ( $output == OBJECT ) {
|
|
return $this->last_result;
|
|
} elseif ( $output == ARRAY_A || $output == ARRAY_N ) {
|
|
if ( $this->last_result ) {
|
|
$i=0;
|
|
foreach( $this->last_result as $row ) {
|
|
$new_array[$i] = (array) $row;
|
|
if ( $output == ARRAY_N ) {
|
|
$new_array[$i] = array_values($new_array[$i]);
|
|
}
|
|
|
|
$i++;
|
|
}
|
|
|
|
return $new_array;
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// ==================================================================
|
|
// Function to get column meta data info pertaining to the last query
|
|
// see docs for more info and usage
|
|
|
|
function get_col_info($info_type='name', $col_offset=-1) {
|
|
|
|
if ( $this->col_info ) {
|
|
if ( $col_offset == -1 ) {
|
|
$i=0;
|
|
foreach($this->col_info as $col ) {
|
|
$new_array[$i] = $col->{$info_type};
|
|
$i++;
|
|
}
|
|
return $new_array;
|
|
} else {
|
|
return $this->col_info[$col_offset]->{$info_type};
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
$wpdb = new wpdb(DB_USER, DB_PASSWORD, DB_NAME, DB_HOST);
|
|
|
|
?>
|