require_wp_db()

702function require_wp_db() {703	global $wpdb;704 705	require_once ABSPATH . WPINC . '/class-wpdb.php';706 707	if ( file_exists( WP_CONTENT_DIR . '/db.php' ) ) {708		require_once WP_CONTENT_DIR . '/db.php';709	}710 711	if ( isset( $wpdb ) ) {712		return;713	}714 715	$dbuser     = defined( 'DB_USER' ) ? DB_USER : '';716	$dbpassword = defined( 'DB_PASSWORD' ) ? DB_PASSWORD : '';717	$dbname     = defined( 'DB_NAME' ) ? DB_NAME : '';718	$dbhost     = defined( 'DB_HOST' ) ? DB_HOST : '';719 720	$wpdb = new wpdb( $dbuser, $dbpassword, $dbname, $dbhost );721}