}
}
+/**
+ * Access/Modify private global variable $_wp_using_ext_object_cache
+ *
+ * Toggle $_wp_using_ext_object_cache on and off without directly touching global
+ *
+ * @since 3.7.0
+ *
+ * @param bool $using Whether external object cache is being used
+ * @return bool The current 'using' setting
+ */
+function wp_using_ext_object_cache( $using = null ) {
+ global $_wp_using_ext_object_cache;
+ $current_using = $_wp_using_ext_object_cache;
+ if ( null !== $using )
+ $_wp_using_ext_object_cache = $using;
+ return $current_using;
+}
+
/**
* Starts the WordPress object cache.
*
* @since 3.0.0
*/
function wp_start_object_cache() {
- global $_wp_using_ext_object_cache, $blog_id;
+ global $blog_id;
$first_init = false;
if ( ! function_exists( 'wp_cache_init' ) ) {
if ( file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) {
require_once ( WP_CONTENT_DIR . '/object-cache.php' );
- $_wp_using_ext_object_cache = true;
- } else {
- require_once ( ABSPATH . WPINC . '/cache.php' );
- $_wp_using_ext_object_cache = false;
+ if ( function_exists( 'wp_cache_init' ) )
+ wp_using_ext_object_cache( true );
}
+
$first_init = true;
- } else if ( !$_wp_using_ext_object_cache && file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) {
+ } else if ( ! wp_using_ext_object_cache() && file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) {
// Sometimes advanced-cache.php can load object-cache.php before it is loaded here.
// This breaks the function_exists check above and can result in $_wp_using_ext_object_cache
// being set incorrectly. Double check if an external cache exists.
- $_wp_using_ext_object_cache = true;
+ wp_using_ext_object_cache( true );
}
+ if ( ! wp_using_ext_object_cache() )
+ require_once ( ABSPATH . WPINC . '/cache.php' );
+
// If cache supports reset, reset instead of init if already initialized.
// Reset signals to the cache that global IDs have changed and it may need to update keys
// and cleanup caches.
if ( ! $first_init && function_exists( 'wp_cache_switch_to_blog' ) )
wp_cache_switch_to_blog( $blog_id );
- else
+ elseif ( function_exists( 'wp_cache_init' ) )
wp_cache_init();
if ( function_exists( 'wp_cache_add_global_groups' ) ) {
if ( ! is_blog_installed() && ! defined( 'WP_INSTALLING' ) )
wp_die( __( 'The site you have requested is not installed properly. Please contact the system administrator.' ) );
} elseif ( ! is_blog_installed() && false === strpos( $_SERVER['PHP_SELF'], 'install.php' ) && !defined( 'WP_INSTALLING' ) ) {
-
- $link = wp_guess_url() . '/wp-admin/install.php';
-
require( ABSPATH . WPINC . '/kses.php' );
require( ABSPATH . WPINC . '/pluggable.php' );
require( ABSPATH . WPINC . '/formatting.php' );
+
+ $link = wp_guess_url() . '/wp-admin/install.php';
+
wp_redirect( $link );
die();
}
* @since 1.2.0
*/
function shutdown_action_hook() {
+ /**
+ * Fires just before PHP shuts down execution.
+ *
+ * @since 1.2.0
+ */
do_action( 'shutdown' );
wp_cache_close();
}