get_site_transient

Source code

function get_site_transient( $transient ) {

	global $_wp_using_ext_object_cache;



	$pre = apply_filters( 'pre_site_transient_' . $transient, false );

	if ( false !== $pre )

		return $pre;



	if ( $_wp_using_ext_object_cache ) {

		$value = wp_cache_get( $transient, 'site-transient' );

	} else {

		// Core transients that do not have a timeout. Listed here so querying timeouts can be avoided.

		$no_timeout = array('update_core', 'update_plugins', 'update_themes');

		$transient_option = '_site_transient_' . $transient;

		if ( ! in_array( $transient, $no_timeout ) ) {

			$transient_timeout = '_site_transient_timeout_' . $transient;

			$timeout = get_site_option( $transient_timeout );

			if ( false !== $timeout && $timeout < time() ) {

				delete_site_option( $transient_option  );

				delete_site_option( $transient_timeout );

				return false;

			}

		}



		$value = get_site_option( $transient_option );

	}



	return apply_filters( 'site_transient_' . $transient, $value );

}