Zend Framework Xml DomDocument

[wiz]

I have problem with xml DomDucument -> using url of xml file, in Zend Framework.When i use a fixed written url then works.Exam.\[code\]$path = "http://www.wtatennis.com/dynamicxml/tennis/12781/players/player/13179/rank_history.xml";$doc = new DOMDocument();$doc->load($path);...\[/code\]But when i try to get xml from post url then doesn't workExam\[code\]$xml = $this->_request->getPost('xml'); //here i get url from form$path = $xml;$doc = new DOMDocument();$doc->load($path);...\[/code\]Thanks for help!