PHP Socket timeout connection check

Question

I am a newbie at PHP so I am wondering if anyone could help me.

I made a script using lots of work, even tough it's really easy but I just suck.

But yeah, if my website is on, this scripts shows it.

But if it doesn't load it takes a million hours for it to say that.

How can I set the maximum time for the script?

Thank you verry much

(I've searched a lot around Stack Overflow for a solution to this and all answers I found were unclear or not working for me.)

    <?php
$host = '127.0.0.1';
$ports = array(3000, 80);

foreach ($ports as $port)
{
    $connection = @fsockopen($host, $port);

    if (is_resource($connection))
    {
        if($port == 80)
        {
        echo "web: ONLINE";
        }

       if($port == 3000)
        {
        echo 'client: ONLINE';
        }

        fclose($connection);
    }

    else
    {
        echo '<h2>' . $host . ':' . $port . ' is not responding.</h2>' . "\n";
    }
}
?>

See the docs at php.net/fsockopen pay close attention to $timeout — Maerlyn
– Maerlyn, Commented Dec 5, 2014 at 14:55

ravenixx · Accepted Answer · 2014-12-05 14:55:59Z

1

Have a quick look at the documentation and you'll see: parameter 5, float $timeout, is able to do that.

You should also check for $connection being false. That occurs if your timeout has been reached, or if any other error occured.

answered Dec 5, 2014 at 14:55

ravenixx

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sjagr · Accepted Answer · 2014-12-05 15:00:24Z

1

You can define the maximum timeout in the 5th argument of the fsockopen function:

$connection = @fsockopen($host, $port, $errno, $errstr, 10); // timeout at 10 seconds

Side note, by passing $errno and $errstr you can now retrieve and subsequently output a little bit more detail in your error:

echo '<h2>' . $host . ':' . $port . ' is not responding.</h2>' . "\r\n";
echo '<p>Error Number ' . $errno . ': ' . $errstr . '</p>'."\r\n";

edited Dec 5, 2014 at 15:00

answered Dec 5, 2014 at 14:54

sjagr

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5 Comments

NubGuy Over a year ago

Thx dude :D, what is the $errno? should i add that variable too or?

sjagr Over a year ago

The $errno and $errstr are actually passed to the function as references to be filled in by fsockopen if there's any error or trouble. You can echo those out later to provide more descriptive messages as to why the connection failed!

sjagr Over a year ago

@NubGuy No problem! Please make sure you mark off the answer that helped you the most as accepted. It can be done by clicking the "checkmark" right below the down/up vote arrows for the answer. Also welcome to SO.

NubGuy Over a year ago

Im new to this forum need 15rep for that if i got that i would

sjagr Over a year ago

@NubGuy You're confusing accepting an answer with upvoting. There's just a 15-minute time limit for accepting an answer, you should be able to now. See this meta answer for more information!

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