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php check headers status going thru all page statuses
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<?php | |
/* @ http://stackoverflow.com/a/12628971 */ | |
function getHttpResponseCode_using_getheaders($url, $followredirects = true){ | |
// returns string responsecode, or false if no responsecode found in headers (or url does not exist) | |
// NOTE: could potentially take up to 0-30 seconds , blocking further code execution (more or less depending on connection, target site, and local timeout settings)) | |
// if $followredirects == false: return the FIRST known httpcode (ignore redirects) | |
// if $followredirects == true : return the LAST known httpcode (when redirected) | |
if(! $url || ! is_string($url)){ | |
return false; | |
} | |
$headers = @get_headers($url); | |
if($headers && is_array($headers)){ | |
if($followredirects){ | |
// we want the the last errorcode, reverse array so we start at the end: | |
$headers = array_reverse($headers); | |
} | |
foreach($headers as $hline){ | |
// search for things like "HTTP/1.1 200 OK" , "HTTP/1.0 200 OK" , "HTTP/1.1 301 PERMANENTLY MOVED" , "HTTP/1.1 400 Not Found" , etc. | |
// note that the exact syntax/version/output differs, so there is some string magic involved here | |
if(preg_match('/^HTTP\/\S+\s+([1-9][0-9][0-9])\s+.*/', $hline, $matches) ){// "HTTP/*** ### ***" | |
$code = $matches[1]; | |
return $code; | |
} | |
} | |
// no HTTP/xxx found in headers: | |
return false; | |
} | |
// no headers : | |
return false; | |
} | |
// | |
if (getHttpResponseCode_using_getheaders($country_url, $followredirects = true) == '404') { | |
echo "404"; | |
} else { | |
echo "200 or other statuses"; | |
} |
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