php_parser.php
protected function hasNamedTagOnOpenTagStack($name)
    {
        return isset($this->tags[$name]) && (count($this->tags[$name]) > 0);
    }
protected function hasNamedTagOnOpenTagStack($name)
    {
        return isset($this->tags[$name]) && (count($this->tags[$name]) > 0);
    }
Test to see if there are any open tags awaiting closure that match the tag name.

@param string $name        Element name.

@return bool            True if any are still open.