Ticket #19324: db.php

<?php
class custom_wpdb extends wpdb {
        /**
         * Copy of the db_connect function with definable newlink and client_flags params
         */
        function db_connect() {

                $this->is_mysql = true;

                if ( defined( 'DB_NEW_LINK' ) ) 
                        $this->newlink = DB_NEW_LINK; 
                else  
                        $this->newlink = true; 

                if ( defined( 'DB_CLIENT_FLAGS' ) )  
                        $this->client_flags = DB_CLIENT_FLAGS; 
                else 
                        $this->client_flags = 0; 


                if ( WP_DEBUG ) {
                        $this->dbh = mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $this->newlink, $this->client_flags );
                } else {
                        $this->dbh = @mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $this->newlink, $this->client_flags );
                }

                if ( !$this->dbh ) {
                        wp_load_translations_early();
                        $this->bail( sprintf( __( "
<h1>Error establishing a database connection</h1>
<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>%s</code>. This could mean your host's database server is down.</p>
<ul>
        <li>Are you sure you have the correct username and 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>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>
" ), htmlspecialchars( $this->dbhost, ENT_QUOTES ) ), 'db_connect_fail' );

                        return;
                }

                $this->set_charset( $this->dbh );

                $this->ready = true;

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

global $wpdb;
$wpdb = new custom_wpdb( DB_USER, DB_PASSWORD, DB_NAME, DB_HOST );