): * /.../Class_Name (or Classname) * 'includes/subdir.../class-name.php' or '...classname.php' * * @since 3.0.0 * * @param $class */ function ADReviewManagerAutoload($class) { // Do not load unless in plugin domain. $namespace = 'ADReviewManager'; if (strpos($class, $namespace) !== 0) { return; } // Converts Class_Name (class convention) to class-name (file convention). // Remove the root namespace. $unprefixed = substr($class, strlen($namespace)); // Build the file path. $file_path = str_replace('\\', DIRECTORY_SEPARATOR, $unprefixed); $file = dirname(__FILE__) . $file_path . '.php'; if (file_exists($file)) { require $file; } } // Register the autoloader. spl_autoload_register('ADReviewManagerAutoload'); }