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<?php
function isUp($url, $ipv6 = false){
$agent = "Just checking if you are up or not.";
$ch=curl_init();
if ( $ipv6 ){
$url = "[".$url."]";
curl_setopt($ch,CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V6);
}
curl_setopt ($ch, CURLOPT_URL,$url );
curl_setopt($ch, CURLOPT_USERAGENT, $agent);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch,CURLOPT_VERBOSE,false);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST, FALSE);
$page=curl_exec($ch);
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if($httpcode>=200 && $httpcode<400 )
return 2;
else if ( $httpcode >= 400)
return $httpcode;
else
return 0;
}
function sanitizeUrl($url){
if ( ! preg_match("|^[a-zA-Z]+://|", $url) )
$url = "http://" . $url;
if ( preg_match("|^(?<host>[a-zA-Z]+://(.+\.[a-zA-Z]+){1,})/.*|", $url, $match) )
$url = $match["host"];
return $url;
}
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