Ticket #36455: 36455.2.diff

wp-admin/includes/admin-filters.php

@@ -119 +119 @@
 add_action( 'upgrader_process_complete', 'wp_version_check', 10, 0 );
 add_action( 'upgrader_process_complete', 'wp_update_plugins', 10, 0 );
 add_action( 'upgrader_process_complete', 'wp_update_themes', 10, 0 );
+add_action( 'upgrader_pre_download', 'wp_opcache_reset', 10, 0 );

wp-includes/update.php

@@ -706 +706 @@
         delete_site_transient( 'update_core' );
 }
 
+/**
+ * Reset PHP opcache
+ *
+ * @since 4.8
+ *
+ * @return boolean
+ */
+function wp_opcache_reset() {
+        if ( function_exists( 'opcache_reset' ) && ini_get('opcache.validate_timestamps') != '1' && (!ini_get('opcache.restrict_api') || stripos(ABSPATH, ini_get('opcache.restrict_api')) === 0) ) {
+                opcache_reset();
+                $opcache_status = opcache_get_status();
+                $matches = preg_grep( "/^" . preg_quote(ABSPATH, '/') . "/" , array_keys($opcache_status['scripts']) );
+                if(count($matches))
+                        array_map('opcache_invalidate', $matches, array_fill(0, count($a), TRUE));
+                return true;
+        }
+        return false;
+}
+
 if ( ( ! is_main_site() && ! is_network_admin() ) || wp_doing_ajax() ) {
         return;
 }