File_get_contents ile siteye bağlandım fakat hata verdi hata

[19-Feb-2014 20:16:37 Europe/Istanbul] PHP Warning: preg_match_all(): in /home/uhdfilmn/public_html/bot2/index.php on line 12


$site = file_get_contents('http://iddaa.tahminkolik.com/iddaaprogram.aspx');

$disim = '@@​';

preg_match_all($disim ,$site ,$cikti);


echo '
'; 

print_r($cikti);

echo '
';