if ( ! function_exists( 'et_core_init' ) ):
* {@see 'plugins_loaded' (9999999) Must run after cache plugins have been loaded.}
function et_core_init() {
ET_Core_API_Spam_Providers::instance();
ET_Core_Cache_Directory::instance();
ET_Core_PageResource::startup();
ET_Core_CompatibilityWarning::instance();
if ( defined( 'ET_CORE_UPDATED' ) ) {
add_action( 'shutdown', array( $wp_rewrite, 'flush_rules' ) );
update_option( 'et_core_page_resource_remove_all', true );
$cache_dir = ET_Core_PageResource::get_cache_directory();
if ( file_exists( $cache_dir . '/DONOTCACHEPAGE' ) ) {
! defined( 'DONOTCACHEPAGE' ) ? define( 'DONOTCACHEPAGE', true ) : '';
@unlink( $cache_dir . '/DONOTCACHEPAGE' );
if ( get_option( 'et_core_page_resource_remove_all' ) ) {
ET_Core_PageResource::remove_static_resources( 'all', 'all', true );
if ( ! wp_next_scheduled( 'et_core_page_resource_auto_clear' ) ) {
wp_schedule_event( time() + MONTH_IN_SECONDS, 'monthly', 'et_core_page_resource_auto_clear' );
if ( ! function_exists( 'et_core_site_has_builder' ) ):
* Check is `et_core_site_has_builder` allowed.
* We can clear cache managed by 3rd party plugins only
* if Divi, Extra, or the Divi Builder plugin
* is active when the core was called.
function et_core_site_has_builder() {
$core_path = get_transient( 'et_core_path' );
$is_divi_builder_plugin_active = false;
if ( ! empty( $core_path ) && false !== strpos( $core_path, '/divi-builder/' ) && function_exists('is_plugin_active') ) {
$is_divi_builder_plugin_active = is_plugin_active( 'divi-builder/divi-builder.php' );
if( $is_divi_builder_plugin_active || in_array( $shortname, array( 'divi', 'extra' ) ) ) {
if ( ! function_exists( 'et_core_clear_wp_cache' ) ):
function et_core_clear_wp_cache( $post_id = '' ) {
if ( ( ! wp_doing_cron() && ! et_core_security_check_passed( 'edit_posts' ) ) || ! et_core_site_has_builder() ) {
if ( is_callable( 'comet_cache::clear' ) ) {
if ( function_exists( 'rocket_clean_post' ) ) {
rocket_clean_post( $post_id );
} else if ( function_exists( 'rocket_clean_domain' ) ) {
if ( has_action( 'w3tc_flush_post' ) ) {
'' !== $post_id ? do_action( 'w3tc_flush_post', $post_id ) : do_action( 'w3tc_flush_posts' );
if ( function_exists( 'wp_cache_debug' ) && defined( 'WPCACHEHOME' ) ) {
include_once WPCACHEHOME . 'wp-cache-phase1.php';
include_once WPCACHEHOME . 'wp-cache-phase2.php';
if ( '' !== $post_id && function_exists( 'clear_post_supercache' ) ) {
clear_post_supercache( $post_id );
} else if ( '' === $post_id && function_exists( 'wp_cache_clear_cache_on_menu' ) ) {
wp_cache_clear_cache_on_menu();
if ( isset( $GLOBALS['wp_fastest_cache'] ) ) {
if ( '' !== $post_id && method_exists( $GLOBALS['wp_fastest_cache'], 'singleDeleteCache' ) ) {
$GLOBALS['wp_fastest_cache']->singleDeleteCache( $post_id );
} else if ( '' === $post_id && method_exists( $GLOBALS['wp_fastest_cache'], 'deleteCache' ) ) {
$GLOBALS['wp_fastest_cache']->deleteCache();
if ( has_action( 'wphb_clear_page_cache' ) ) {
'' !== $post_id ? do_action( 'wphb_clear_page_cache', $post_id ) : do_action( 'wphb_clear_page_cache' );
// WordPress Cache Enabler
if ( has_action( 'ce_clear_cache' ) ) {
'' !== $post_id ? do_action( 'ce_clear_post_cache', $post_id ) : do_action( 'ce_clear_cache' );
if ( is_callable( 'LiteSpeed_Cache::get_instance' ) ) {
$litespeed = LiteSpeed_Cache::get_instance();
if ( '' !== $post_id && method_exists( $litespeed, 'purge_post' ) ) {
$litespeed->purge_post( $post_id );
} else if ( '' === $post_id && method_exists( $litespeed, 'purge_all' ) ) {
// LiteSpeed Cache v1.1.3+
if ( '' !== $post_id && function_exists( 'litespeed_purge_single_post' ) ) {
litespeed_purge_single_post( $post_id );
} else if ( '' === $post_id && is_callable( 'LiteSpeed_Cache_API::purge_all' ) ) {
LiteSpeed_Cache_API::purge_all();
if ( class_exists( 'HyperCache' ) && isset( HyperCache::$instance ) ) {
if ( '' !== $post_id && method_exists( HyperCache::$instance, 'clean_post' ) ) {
HyperCache::$instance->clean_post( $post_id );
} else if ( '' === $post_id && method_exists( HyperCache::$instance, 'clean' ) ) {
HyperCache::$instance->clean_post( $post_id );
// Hosting Provider Caching
// Pantheon Advanced Page Cache
$pantheon_clear = 'pantheon_wp_clear_edge_keys';
$pantheon_clear_all = 'pantheon_wp_clear_edge_all';
if ( function_exists( $pantheon_clear ) || function_exists( $pantheon_clear_all ) ) {
if ( '' !== $post_id && function_exists( $pantheon_clear ) ) {
pantheon_wp_clear_edge_keys( array( "post-{$post_id}" ) );
} else if ( '' === $post_id && function_exists( $pantheon_clear_all ) ) {
pantheon_wp_clear_edge_all();
if ( isset( $GLOBALS['sg_cachepress_supercacher'] ) ) {
global $sg_cachepress_supercacher;
if ( is_object( $sg_cachepress_supercacher ) && method_exists( $sg_cachepress_supercacher, 'purge_cache' ) ) {
$sg_cachepress_supercacher->purge_cache( true );
} else if ( function_exists( 'sg_cachepress_purge_cache' ) ) {
sg_cachepress_purge_cache();
if ( class_exists( 'WpeCommon' ) ) {
is_callable( 'WpeCommon::purge_memcached' ) ? WpeCommon::purge_memcached() : '';
is_callable( 'WpeCommon::clear_maxcdn_cache' ) ? WpeCommon::clear_maxcdn_cache() : '';
is_callable( 'WpeCommon::purge_varnish_cache' ) ? WpeCommon::purge_varnish_cache() : '';
if ( is_callable( 'WpeCommon::instance' ) && $instance = WpeCommon::instance() ) {
method_exists( $instance, 'purge_object_cache' ) ? $instance->purge_object_cache() : '';
if ( class_exists( 'Endurance_Page_Cache' ) ) {
wp_doing_ajax() ? ET_Core_LIB_BluehostCache::get_instance()->clear( $post_id ) : do_action( 'epc_purge' );
if ( isset( $GLOBALS['batcache'] ) && is_object( $GLOBALS['batcache'] ) ) {
if ( class_exists( 'Breeze_Admin' ) ) {
$breeze_admin = new Breeze_Admin();
$breeze_admin->breeze_clear_all_cache();
if ( class_exists( '\Kinsta\Cache' ) && isset( $GLOBALS['kinsta_cache'] ) && is_object( $GLOBALS['kinsta_cache'] ) ) {
if ( isset( $kinsta_cache->kinsta_cache_purge ) && method_exists( $kinsta_cache->kinsta_cache_purge, 'purge_complete_caches' ) ) {
$kinsta_cache->kinsta_cache_purge->purge_complete_caches();
if ( class_exists( '\WPaaS\Cache' ) ) {
if ( ! \WPaaS\Cache::has_ban() ) {
remove_action( 'shutdown', array( '\WPaaS\Cache', 'purge' ), PHP_INT_MAX );
add_action( 'shutdown', array( '\WPaaS\Cache', 'ban' ), PHP_INT_MAX );
// Complimentary Performance Plugins
if ( is_callable( 'autoptimizeCache::clearall' ) ) {
autoptimizeCache::clearall();
if ( class_exists( 'WP_Optimize' ) && defined( 'WPO_PLUGIN_MAIN_PATH' ) ) {
if ( '' !== $post_id && is_callable( 'WPO_Page_Cache::delete_single_post_cache' ) ) {
WPO_Page_Cache::delete_single_post_cache( $post_id );
} elseif ( is_callable( array( 'WP_Optimize', 'get_page_cache' ) ) && is_callable( array( WP_Optimize()->get_page_cache(), 'purge' ) ) ) {
WP_Optimize()->get_page_cache()->purge();
} catch( Exception $err ) {
ET_Core_Logger::error( 'An exception occurred while attempting to clear site cache.' );
if ( ! function_exists( 'et_core_get_nonces' ) ):
* Returns the nonces for this component group.
function et_core_get_nonces() {
return $nonces ? $nonces : $nonces = array(
'clear_page_resources_nonce' => wp_create_nonce( 'clear_page_resources' ),
if ( ! function_exists( 'et_core_page_resource_auto_clear' ) ):
function et_core_page_resource_auto_clear() {
ET_Core_PageResource::remove_static_resources( 'all', 'all' );
add_action( 'switch_theme', 'et_core_page_resource_auto_clear' );
add_action( 'activated_plugin', 'et_core_page_resource_auto_clear', 10, 0 );
add_action( 'deactivated_plugin', 'et_core_page_resource_auto_clear', 10, 0 );
add_action( 'et_core_page_resource_auto_clear', 'et_core_page_resource_auto_clear' );
if ( ! function_exists( 'et_core_page_resource_clear' ) ):
* Ajax handler for clearing cached page resources.
function et_core_page_resource_clear() {
et_core_security_check( 'manage_options', 'clear_page_resources' );
if ( empty( $_POST['et_post_id'] ) ) {
$post_id = sanitize_key( $_POST['et_post_id'] );
$owner = sanitize_key( $_POST['et_owner'] );
ET_Core_PageResource::remove_static_resources( $post_id, $owner );
add_action( 'wp_ajax_et_core_page_resource_clear', 'et_core_page_resource_clear' );
if ( ! function_exists( 'et_core_page_resource_fallback' ) ):
* Handles page resource fallback requests.
function et_core_page_resource_fallback() {
// phpcs:disable WordPress.Security.NonceVerification.NoNonceVerification
if ( ! isset( $_GET['et_core_page_resource'] ) ) {
if ( is_admin() && ! is_customize_preview() ) {
/** @see ET_Core_SupportCenter::toggle_safe_mode */
if ( et_core_is_safe_mode_active() ) {
$resource_id = sanitize_text_field( $_GET['et_core_page_resource'] );
$pattern = '/et-(\w+)-([\w-]+)-cached-inline-(?>styles|scripts)(global|\d+)/';
$has_matches = preg_match( $pattern, $resource_id, $matches );
$resource = et_core_page_resource_get( $matches[1], $matches[2], $matches[3] );
if ( $resource->has_file() ) {
wp_redirect( $resource->URL );
add_action( 'init', 'et_core_page_resource_fallback', 0 );
if ( ! function_exists( 'et_core_page_resource_get' ) ):
* Get a page resource instance.
* @param string $owner The owner of the instance (core|divi|builder|bloom|monarch|custom).
* @param string $slug A string that uniquely identifies the resource.
* @param string|int $post_id The post id that the resource is associated with or `global`.
* If `null`, the return value of {@link get_the_ID()} will be used.
* @param string $type The resource type (style|script). Default: `style`.
* @param string $location Where the resource should be output (head|footer). Default: `head-late`.
* @return ET_Core_PageResource
function et_core_page_resource_get( $owner, $slug, $post_id = null, $priority = 10, $location = 'head-late', $type = 'style' ) {
$post_id = $post_id ? $post_id : et_core_page_resource_get_the_ID();
$_slug = "et-{$owner}-{$slug}-{$post_id}-cached-inline-{$type}s";
$all_resources = ET_Core_PageResource::get_resources();
return isset( $all_resources[ $_slug ] )
? $all_resources[ $_slug ]
: new ET_Core_PageResource( $owner, $slug, $post_id, $priority, $location, $type );
if ( ! function_exists( 'et_core_page_resource_maybe_output_fallback_script' ) ):
function et_core_page_resource_maybe_output_fallback_script() {
if ( is_admin() && ! is_customize_preview() ) {
if ( function_exists( 'et_get_option' ) && 'off' === et_get_option( 'et_pb_static_css_file', 'on' ) ) {
/** @see ET_Core_SupportCenter::toggle_safe_mode */
if ( et_core_is_safe_mode_active() ) {
$IS_SINGULAR = et_core_page_resource_is_singular();
$POST_ID = $IS_SINGULAR ? et_core_page_resource_get_the_ID() : 'global';
if ( $IS_SINGULAR && 'off' === get_post_meta( $POST_ID, '_et_pb_static_css_file', true ) ) {
$SITE_URL = get_site_url();
$SCRIPT = et_()->WPFS()->get_contents( ET_CORE_PATH . 'admin/js/page-resource-fallback.min.js' );
printf( "<script>var et_site_url='%s';var et_post_id='%d';%s</script>",
et_core_esc_previously( $SITE_URL ),
et_core_esc_previously( $POST_ID ),
et_core_esc_previously( $SCRIPT )
add_action( 'wp_head', 'et_core_page_resource_maybe_output_fallback_script', 0 );
if ( ! function_exists( 'et_core_page_resource_get_the_ID' ) ):
function et_core_page_resource_get_the_ID() {
if ( is_int( $post_id ) ) {
return $post_id = apply_filters( 'et_core_page_resource_current_post_id', get_the_ID() );
if ( ! function_exists( 'et_core_page_resource_is_singular' ) ):
function et_core_page_resource_is_singular() {
return apply_filters( 'et_core_page_resource_is_singular', is_singular() );
if ( ! function_exists( 'et_core_page_resource_register_fallback_query' ) ):
function et_core_page_resource_register_fallback_query() {
add_rewrite_tag( '%et_core_page_resource%', '([\w\d-]+)' );
add_action( 'init', 'et_core_page_resource_register_fallback_query', 11 );
if ( ! function_exists( 'et_debug' ) ):
function et_debug( $msg, $bt_index = 4, $log_ajax = true ) {
ET_Core_Logger::debug( $msg, $bt_index, $log_ajax );
if ( ! function_exists( 'et_wrong' ) ):
function et_wrong( $msg, $error = false ) {
$msg = "You're Doing It Wrong! {$msg}";
if ( ! function_exists( 'et_error' ) ):
function et_error( $msg, $bt_index = 4 ) {
ET_Core_Logger::error( "[ERROR]: {$msg}", $bt_index );