On Wed, Dec 14, 2011 at 12:11 AM, Mihai Anghel <mihaigrim1...@gmail.com> wrote:
> Hello,
>
> It appears to me that something is strange with the socket_select function.
> From what I understand the value of the fourth parameter, tv_sec,
> should block the execution of the script for that number of seconds.
> I tried this code :
> <?php
>
> error_reporting(E_ERROR);
>
> $serverSocket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
>
> $result = socket_bind($serverSocket, "127.0.0.1", "20668");
>
> $start = time();
>
> while(true)
> {
>    $reads = array($serverSocket);
>    $writes = null;
>    $except = null;
>    $changes = socket_select($reads, $writes, $except, 5);
>    $now = time();
>    echo $now - $start;
>    echo "\n";
> }
>
> and when I run it with php -q server3.php the ouput shows something
> like 0 0 0 0 0 1 1 1 1 1 2 2 2 2 etc so the script doesn't pause on
> socket_select until it returns.
>
> Cam somebody explain me what's happening ?
>

It seems to me that your socket_select function is failing, maybe
because earlier code is failing. Check the return of socket_select
like this:
if ($changes === false) {
    echo "socket_select() failed, reason: " .
        socket_strerror(socket_last_error()) . "\n";
}

Cheers,

Matijn

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