i want to delete files from a directory via php. Somehow my php_errorlog always tells me:

[06-Haziran-2010 19:38:46] PHP Warning: chmod () [function.chmod]: Operation in / Users / myname / htdocs / izin verilmez

if ($_POST) {
        echo "yeah!!!";
        print count($_POST['deletefiles']);
        chmod($path, 0777); //server rights
        foreach ($_POST['deletefiles'] as $value) {
            print $value;
            unlink($path .'/' . $value);
        }
        //chmod($path, 0666); //server rights
    }

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