<?
  function Link_Kontrol($link) {
    $main = array();
    $ch = curl_init();
    curl_setopt ($ch, CURLOPT_URL, $link);
    curl_setopt ($ch, CURLOPT_HEADER, 1);
    curl_setopt ($ch, CURLOPT_NOBODY, 1);
    curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt ($ch, CURLOPT_NETRC, 1);
    curl_setopt ($ch, CURLOPT_TIMEOUT, 10);
    ob_start();
    curl_exec ($ch);
    $stuff = ob_get_contents();
    ob_end_clean();
    curl_close ($ch);
    $parts = split("\n",$stuff,2);
    $main = split(" ",$parts[0],3);
   echo  $don =  ($main[2])?"Site Açık":"Site'ye Erişilemişyor";
  }

//örnek kullanım
Link_Kontrol("http://www.kralforumcu.net");
?>