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php file get contents ignoring timeout using -'php,file-get-contents,connection-timeout'

php file get contents ignoring timeout  using -'php,file-get-contents,connection-timeout'

$url = 'http://a.url/i-know-is-down';

//ini_set('default_socket_timeout', 5);

$ctx = stream_context_create(array(
    'http' => array(
        'timeout' => 5,
        'ignore_errors' => true

$start = microtime(true);
$content = @file_get_contents($url, false, $ctx);
$end = microtime(true);
echo $end - $start, "\n";

the response I get is generally 21.232 segs, shouldn't be about five seconds???

Uncommenting the ini_set line don't help at all.

asked Sep 8, 2015 by rajesh
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1 Answer

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You are setting the read timeout with socket_create_context. If the page you are trying to access doesn't exist then the server will let you connect and give you a 404. However, if the site doesn't exist (won't resolve or no web server behind it), then file_get_contents() will ignore read timeout because it hasn't even timed out connecting to it yet. I don't think you can set the connection timeout in file_get_contents. I recently rewrote some code to use fsockopen() exactly because it lets you specify connect timeout $connTimeout = 30 ; $fp = fsockopen($hostname, $port, $errno, $errstr, $connTimeout); Ofcourse going to fsockopen will require you to then fread() from it in a loop, compicating your code slightly. It does give you more control, however, on detecting read timeouts while reading from it using stream_get_meta_data()
answered Sep 8, 2015 by rajesh