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asagidaki kodlari wp-includes/wp-db.php'ye koyarsan düzeliyor

<?php
// WordPress DB Class

// ORIGINAL CODE FROM:
// Justin Vincent (justin@visunet.ie)
// http://php.justinvincent.com

define('EZSQL_VERSION', 'WP1.25');
define('OBJECT', 'OBJECT', true);
define('ARRAY_A', 'ARRAY_A', false);
define('ARRAY_N', 'ARRAY_N', false);

if (!defined('SAVEQUERIES'))
define('SAVEQUERIES', false);

class wpdb {

var $show_errors = true;
var $num_queries = 0;
var $last_query;
var $col_info;
var $queries;

// Our tables
var $posts;
var $users;
var $categories;
var $post2cat;
var $comments;
var $links;
var $options;
var $optiontypes;
var $optionvalues;
var $optiongroups;
var $optiongroup_options;
var $postmeta;
var $usermeta;
var $terms;
var $term_taxonomy;
var $term_relationships;

var $charset;
var $collate;

/**
* Connects to the database server and selects a database
* @param string $dbuser
* @param string $dbpassword
* @param string $dbname
* @param string $dbhost
*/
function wpdb($dbuser, $dbpassword, $dbname, $dbhost) {
return $this->__construct($dbuser, $dbpassword, $dbname, $dbhost);
}

function __construct($dbuser, $dbpassword, $dbname, $dbhost) {
register_shutdown_function(array(&$this, "__destruct"));

if ( defined('DB_CHARSET') )
$this->charset = DB_CHARSET;

if ( defined('DB_COLLATE') )
$this->collate = DB_COLLATE;

$this->dbuser = $dbuser;
$this->dbpassword = $dbpassword;
$this->dbname = $dbname;
$this->dbhost = $dbhost;

$this->connecttodb();
}

function connecttodb()
{

$this->dbh = @mysql_connect($this->dbhost, $this->dbuser, $this->dbpassword, true);
if (!$this->dbh) {
$this->bail("
<h1>Error establishing a database connection</h1>
This either means that the username and password information in your wp-config.php file is incorrect or we can't contact the database server at $dbhost. This could mean your host's database server is down.

Are you sure you have the correct username and password?

Are you sure that you have typed the correct hostname?

Are you sure that the database server is running?

If you're unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.

");
}

if ( !empty($this->charset) && version_compare(mysql_get_server_info(), '4.1.0', '>=') )
$this->query("SET NAMES '$this->charset'");

$this->select($this->dbname);
}

function checkconnection()
{
$maxcount = 5;
$cnt = 1;

$ping = mysql_ping( $this->dbh ) ;

while( !$ping && $cnt < $maxcount)
{
@mysql_close($this->dbh);
$this->connecttodb();

$ping = mysql_ping( $this->dbh ) ;

if(!$ping )
{
sleep(2);
}
$cnt+=1;
}

if(!$ping ) { die("Attempted to connect for " . $maxcount . " but failed...") ; }

}

function __destruct() {
return true;
}

/**
* Selects a database using the current class's $this->dbh
* @param string $db name
*/
function select($db) {
if (!@mysql_select_db($db, $this->dbh)) {
$this->bail("
<h1>Can’t select database</h1>
We were able to connect to the database server (which means your username and password is okay) but not able to select the $db database.

Are you sure it exists?

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?

If you don't know how to setup a database you should contact your host. If all else fails you may find help at the WordPress Support Forums.
");
}
}

/**
* Escapes content for insertion into the database, for security
*
* @param string $string
* @return string query safe string
*/
function escape($string) {
return addslashes( $string ); // Disable rest for now, causing problems
if( !$this->dbh || version_compare( phpversion(), '4.3.0' ) == '-1' )
return mysql_escape_string( $string );
else
return mysql_real_escape_string( $string, $this->dbh );
}

/**
* Escapes content by reference for insertion into the database, for security
* @param string $s
*/
function escape_by_ref(&$s) {
$s = $this->escape($s);
}

/**
* Prepares a SQL query for safe use, using sprintf() syntax
*/
function prepare($args=NULL) {
if ( NULL === $args )
return;
$args = func_get_args();
$query = array_shift($args);
$query = str_replace("'%s'", '%s', $query); // in case someone mistakenly already singlequoted it
$query = str_replace('"%s"', '%s', $query); // doublequote unquoting
$query = str_replace('%s', "'%s'", $query); // quote the strings
array_walk($args, array(&$this, 'escape_by_ref'));
return @vsprintf($query, $args);
}

// ==================================================================
// Print SQL/DB error.

function print_error($str = '') {
global $EZSQL_ERROR;
if (!$str) $str = mysql_error($this->dbh);
$EZSQL_ERROR[] =
array ('query' => $this->last_query, 'error_str' => $str);

$str = htmlspecialchars($str, ENT_QUOTES);
$query = htmlspecialchars($this->last_query, ENT_QUOTES);
// Is error output turned on or not..
if ( $this->show_errors ) {
// If there is an error then take note of it
print "

<p class='wpdberror'>WordPress database error: [$str]
$query

";
} 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() {
$this->last_result = array();
$this->col_info = null;
$this->last_query = null;
}

// ==================================================================
// Basic Query - see docs for more detail

function query($query) {
// filter the query, if filters are available
// NOTE: some queries are made before the plugins have been loaded, and thus cannot be filtered with this method

$this->checkconnection();

if ( function_exists('apply_filters') )
$query = apply_filters('query', $query);

// initialise return
$return_val = 0;
$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..
if (SAVEQUERIES)
$this->timer_start();

$this->result = @mysql_query($query, $this->dbh);
++$this->num_queries;

if (SAVEQUERIES)
$this->queries[] = array( $query, $this->timer_stop() );

// If there is an error then take note of it..
if ( mysql_error($this->dbh) ) {
$this->print_error();
return false;
}

if ( preg_match("/^\\s*(insert|delete|update|replace) /i",$query) ) {
$this->rows_affected = mysql_affected_rows($this->dbh);
// Take note of the insert_id
if ( preg_match("/^\\s*(insert|replace) /i",$query) ) {
$this->insert_id = mysql_insert_id($this->dbh);
}
// Return number of rows affected
$return_val = $this->rows_affected;
} else {
$i = 0;
while ($i < @mysql_num_fields($this->result)) {
$this->col_info[$i] = @mysql_fetch_field($this->result);
$i++;
}
$num_rows = 0;
while ( $row = @mysql_fetch_object($this->result) ) {
$this->last_result[$num_rows] = $row;
$num_rows++;
}

@mysql_free_result($this->result);

// Log number of rows the query returned
$this->num_rows = $num_rows;

// Return number of rows selected
$return_val = $this->num_rows;
}

return $return_val;
}

/**
* Get one variable from the database
* @param string $query (can be null as well, for caching, see codex)
* @param int $x = 0 row num to return
* @param int $y = 0 col num to return
* @return mixed results
*/
function get_var($query=null, $x = 0, $y = 0) {
$this->func_call = "\$db->get_var(\"$query\",$x,$y)";
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 database
* @param string $query
* @param string $output ARRAY_A | ARRAY_N | OBJECT
* @param int $y row num to return
* @return mixed results
*/
function get_row($query = null, $output = OBJECT, $y = 0) {
$this->func_call = "\$db->get_row(\"$query\",$output,$y)";
if ( $query )
$this->query($query);
else
return null;

if ( !isset($this->last_result[$y]) )
return null;

if ( $output == OBJECT ) {
return $this->last_result[$y] ? $this->last_result[$y] : null;
} elseif ( $output == ARRAY_A ) {
return $this->last_result[$y] ? get_object_vars($this->last_result[$y]) : null;
} elseif ( $output == ARRAY_N ) {
return $this->last_result[$y] ? array_values(get_object_vars($this->last_result[$y])) : null;
} else {
$this->print_error(" \$db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N");
}
}

/**
* Gets one column from the database
* @param string $query (can be null as well, for caching, see codex)
* @param int $x col num to return
* @return array results
*/
function get_col($query = null , $x = 0) {
if ( $query )
$this->query($query);

$new_array = array();
// 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 an entire result set from the database
* @param string $query (can also be null to pull from the cache)
* @param string $output ARRAY_A | ARRAY_N | OBJECT
* @return mixed results
*/
function get_results($query = null, $output = OBJECT) {
$this->func_call = "\$db->get_results(\"$query\", $output)";

if ( $query )
$this->query($query);
else
return null;

// 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;
}
}
}

/**
* Grabs column metadata from the last query
* @param string $info_type one of name, table, def, max_length, not_null, primary_key, multiple_key, unique_key, numeric, blob, type, unsigned, zerofill
* @param int $col_offset 0: col name. 1: which table the col's in. 2: col's max length. 3: if the col is numeric. 4: col's type
* @return mixed results
*/
function get_col_info($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};
}
}
}

/**
* Starts the timer, for debugging purposes
*/
function timer_start() {
$mtime = microtime();
$mtime = explode(' ', $mtime);
$this->time_start = $mtime[1] + $mtime[0];
return true;
}

/**
* Stops the debugging timer
* @return int total time spent on the query, in milliseconds
*/
function timer_stop() {
$mtime = microtime();
$mtime = explode(' ', $mtime);
$time_end = $mtime[1] + $mtime[0];
$time_total = $time_end - $this->time_start;
return $time_total;
}

/**
* Wraps fatal errors in a nice header and footer and dies.
* @param string $message
*/
function bail($message) { // Just wraps errors in a nice header and footer
if ( !$this->show_errors )
return false;
wp_die($message);
}
}

if ( ! isset($wpdb) )
$wpdb = new wpdb(DB_USER, DB_PASSWORD, DB_NAME, DB_HOST);
?>

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