Ticket #36926: 36926.diff

src/wp-includes/compat.php

@@ -434 +434 @@
 if ( ! function_exists( 'random_int' ) ) {
         require ABSPATH . WPINC . '/random_compat/random.php';
 }
+
+// SPL can be disabled on PHP 5.2
+if ( ! function_exists( 'spl_autoload_register' ) ):
+        $_wp_spl_autoloaders = array();
+
+        /**
+         * Autoloader compatibility callback.
+         *
+         * @param string $classname Class to attempt autoloading.
+         */
+        function __autoload( $classname ) {
+                global $_wp_spl_autoloaders;
+                foreach ( $_wp_spl_autoloaders as $autoloader ) {
+                        call_user_func( $autoloader, $classname );
+
+                        // If it has been autoloaded, stop processing.
+                        if ( class_exists( $classname, false ) ) {
+                                return;
+                        }
+                }
+        }
+
+        /**
+         * Register a function to be autoloaded.
+         *
+         * @param callable $autoload_function The function to register.
+         * @param boolean $throw Should the function throw an exception if the function isn't callable?
+         * @param boolean $prepend Should we prepend the function to the stack?
+         */
+        function spl_autoload_register( $autoload_function, $throw = true, $prepend = false ) {
+                if ( $throw && ! is_callable( $autoload_function ) ) {
+                        // String not translated to match PHP core.
+                        throw new Exception( 'Function not callable' );
+                }
+
+                global $_wp_spl_autoloaders;
+
+                // Don't allow multiple registration.
+                if ( in_array( $autoload_function, $_wp_spl_autoloaders ) ) {
+                        return;
+                }
+
+                if ( $prepend ) {
+                        array_unshift( $_wp_spl_autoloaders, $autoload_function );
+                } else {
+                        $_wp_spl_autoloaders[] = $autoload_function;
+                }
+        }
+
+        /**
+         * Unregister an autoloader function.
+         *
+         * @param callable $function The function to unregister.
+         * @return boolean True if the function was unregistered, false if it could not be.
+         */
+        function spl_autoload_unregister( $function ) {
+                global $_wp_spl_autoloaders;
+                foreach ( $_wp_spl_autoloaders as &$autoloader ) {
+                        if ( $autoloader === $function ) {
+                                unset( $autoloader );
+                                return true;
+                        }
+                }
+
+                return false;
+        }
+
+        /**
+         * Get the registered autoloader functions.
+         *
+         * @return array List of autoloader functions.
+         */
+        function spl_autoload_functions() {
+                return $GLOBALS['_wp_spl_autoloaders'];
+        }
+endif;