Online PHP editor | refs for 21UXa

<?php class Parser { public function parse($convertClassic = true) { $context = func_num_args() > 1 ? func_get_arg(1) : null; if ($context !== null && !$context instanceof DOMElement) { throw new InvalidArgumentException(__METHOD__ . ': Argument #1 ($context) must be of type ?DOMElement, ' . gettype($context) . ' given'); } } } class ChildParser extends Parser { public function parse($convertClassic = true, DOMElement $context = null) { return parent::parse($convertClassic, $context); } }