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POHow to check if a url exists with PHP and make it time out after a number of seconds
 

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  1. POHow to check if a url exists with PHP and make it time out after a number of seconds
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    <p>I've used 2 different methods of checking the url so far:</p> <pre><code>$h = @get_headers($url); $status = array(); preg_match('/HTTP\/.* ([0-9]+) .*/', $h[0] , $status); return ($status[1] == 200); </code></pre> <p>and</p> <pre><code>$file_headers = @get_headers($url); if($file_headers[0] == 'HTTP/1.1 404 Not Found') { $exists = false; } else { $exists = true; } return $exists; </code></pre> <p>I'm just not sure how I can make these requests time out after a specified number of seconds. My script hangs for minutes, when a url doesn't exist, before it finally comes back as offline status. Any ideas?</p> <p>SOLUTION:</p> <p>Used Curl to set the timeout using the following code:</p> <pre><code>$curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_HEADER, true); curl_setopt($curl, CURLOPT_TIMEOUT, 10); curl_setopt($curl, CURLOPT_NOBODY, true); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); $data = curl_exec($curl); curl_close($curl); preg_match("/HTTP\/1\.[1|0]\s(\d{3})/",$data,$matches); return ($matches[1] == 200); </code></pre>
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