Problem With Writing Xml File [permission Denied]

[miki208]

When I want to update my xml file with this PHP script:

CODE

<?php
$xml = simplexml_load_file('reklama.xml'); //This line will load the XML file.

$sxe = new SimpleXMLElement($xml->asXML()); //In this line it create a SimpleXMLElement object with the source of the XML file.
//The following lines will add a new child and others child inside the previous child created.
$reklama = $sxe->addChild('reklama');
$reklama->addChild('autor', $_POST['pAutor']);
$reklama->addChild('naslov', $_POST['pNaslov']);
$reklama->addChild('tekst', $_POST['pTekst']);
//This next line will overwrite the original XML file with new data added
$reklama->asXML('reklama.xml');
echo 'Oglas uspesno dodat!!!';
?>

I get this warning:
Warning: SimpleXMLElement::asXML(reklama.xml) [simplexmlelement.asxml]: failed to open stream: Permission denied in /www/clanteam.com/m/i/k/mikisoft/htdocs/reklama/reklama.php on line 11
Please help me :/

[ssfdre38]

chmod it to 755 or 777