stream_set_timeout

(PHP 4 >= 4.3.0, PHP 5)

stream_set_timeout — Set timeout period on a stream

Description

bool stream_set_timeout ( resource $stream , int $seconds [, int $microseconds ] )

Sets the timeout value on stream , expressed in the sum of seconds and microseconds . Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.

When the stream times out, the 'timed_out' key of the array returned by stream_get_meta_data() is set to TRUE, although no error/warning is generated.

Пример #1 stream_set_timeout() example

<?php
$fp 
fsockopen("www.example.com"80);
if (!
$fp) {
    echo 
"Unable to open\n";
} else {

    
fwrite($fp"GET / HTTP/1.0\r\n\r\n");
    
stream_set_timeout($fp2);
    
$res fread($fp2000);

    
$info stream_get_meta_data($fp);
    
fclose($fp);

    if (
$info['timed_out']) {
        echo 
'Connection timed out!';
    } else {
        echo 
$res;
    }

}
?>

Замечание: As of PHP 4.3, this function can (potentially) work on any kind of stream. In PHP 4.3, socket based streams are still the only kind supported in the PHP core, although streams from other extensions may support this function.

Замечание: This function doesn't work with advanced operations like stream_socket_recvfrom(), use stream_select() with timeout parameter instead.

This function was previously called as set_socket_timeout() and later socket_set_timeout() but this usage is deprecated.

See also fsockopen() and fopen().

Коментарии

Автор:
I have found it required to add 

"stream_set_blocking($fp, FALSE )" 

prior to any fgets(), fread(), etc. to prevent the code from hanging up when remote files are called and the response is slow.
2005-02-17 07:37:10
http://php5.kiev.ua/manual/ru/function.stream-set-timeout.html
stream_set_timeout() is not suitable for such files as UNIX-devices (/dev/...), i suggest to use select() instead with desirable timeout value - that works well.
2006-02-25 04:41:06
http://php5.kiev.ua/manual/ru/function.stream-set-timeout.html
If you are using fsockopen() to create a connection, first going to write into the stream and then waiting for the reply (e.g. simulating HTTP request with some extra headers), then stream_set_timeout() must be set only after the write - if it is before write, it has no effect on the read timeout :-( 
Noticed at least on PHP/4.3.10
2006-08-01 11:10:20
http://php5.kiev.ua/manual/ru/function.stream-set-timeout.html
I have found that in order to actually stop the socket from timing out the script, you must call stream_get_meta_data and check for a timeout within the loop reading from the socket.

Example:

<?php
$sock 
fsockopen($host80$errno$errstr30);
if(!
$sock){
    echo 
"Unable to get server status";
}else{
   
$out "GET /server.php HTTP/1.1\r\n";
   
$out .= "Host: $host\r\n";
   
$out .= "Connection: Close\r\n\r\n";

   
fwrite($sock$out);

   
stream_set_blocking($fpFALSE );
   
stream_set_timeout($sock$timeout);
   
$info stream_get_meta_data($sock);

    while (!
feof($sock) && !$info['timed_out']) {
       
$file .= fgets($sock4096);
       
$info stream_get_meta_data($sock);
    }

   
fclose($sock);
?>
2006-11-20 08:33:09
http://php5.kiev.ua/manual/ru/function.stream-set-timeout.html
Here is a working example for loops:

<?php
// Timeout in seconds
$timeout 5;

$fp fsockopen("www.server.com"80$errno$errstr$timeout);

if (
$fp) {
       
fwrite($fp"GET /file.php HTTP/1.0\r\n");
       
fwrite($fp"Host: www.server.com\r\n");
       
fwrite($fp"Connection: Close\r\n\r\n");

       
stream_set_blocking($fpTRUE);
       
stream_set_timeout($fp,$timeout);
       
$info stream_get_meta_data($fp);

        while ((!
feof($fp)) && (!$info['timed_out'])) {
               
$data .= fgets($fp4096);
               
$info stream_get_meta_data($fp);
               
ob_flush;
               
flush();
        }

        if (
$info['timed_out']) {
                echo 
"Connection Timed Out!";
        } else {
                echo 
$data;
        }
}
?>
2007-03-12 11:39:05
http://php5.kiev.ua/manual/ru/function.stream-set-timeout.html
I didn't have much luck with the suggestions below (although I likely applied them wrong). 
Instead, I used stream_context_create() and set an http option for timeout. I fed that context into file_get_contents() and voila!

To my desperate friend below: the https transport can also use the http stream context options. I haven't verified this works as I don't have a slow responding ssl to test on. But if you are still stressing, give the below a shot (you may need to modify a bit...) 

<?php
    $timeout 
5*60;
   
$options = array(
         
'http'=>array(
           
'method'=>"GET",
           
'header'=>"Accept-language: en\r\n",
             
'timeout' => $timeout 
             
)
        );
   
$context stream_context_create($options);
   
$contents file_get_contents($sourcefalse$context);
?>

Yes...that is a 5 minute timeout.
2009-11-29 19:53:23
http://php5.kiev.ua/manual/ru/function.stream-set-timeout.html
In case anyone is puzzled, stream_set_timeout DOES NOT work for sockets created with socket_create or socket_accept. Use socket_set_option instead.

Instead of:
<?php
stream_set_timeout
($socket,$sec,$usec);
?>

Use:
<?php
socket_set_option
($socketSOL_SOCKETSO_RCVTIMEO, array('sec'=>$sec'usec'=>$usec));
socket_set_option($socketSOL_SOCKETSO_SNDTIMEO, array('sec'=>$sec'usec'=>$usec));
?>
2010-10-29 12:29:35
http://php5.kiev.ua/manual/ru/function.stream-set-timeout.html
This function seems to have no effect when running as a CLI script, see http://bugs.php.net/bug.php?id=36030
2011-05-18 04:28:20
http://php5.kiev.ua/manual/ru/function.stream-set-timeout.html
Автор:
Just in case someone stumbles into my situation... I was trying to get the microseconds part to work and it just wasn't working as expected.

Assuming blocking mode is true and I use 

<?php stream_set_timeout($s10);?>

I get a 1s delay as expected. However when I do 

<?php stream_set_timeout($s0500);?>

I expect a 500microsecond delay but I get no delays at all. However when i do this

<?php stream_set_timeout($s0500000);?>

I get a 500 microsecond delay which is what I was expecting
2014-05-27 23:25:02
http://php5.kiev.ua/manual/ru/function.stream-set-timeout.html
Another note alread states that blocking-reads may be an issue, if the counterpart responds very slowly - or not at all. The stream timeout may not work as expected in such a situation.

However, php.net provides very little information on how to use non-blocking reading operations. Here's a code sample:

<?php
        stream_set_timeout
($c$timeout);
       
$data '';
        while (
is_resource($c) && !feof($c)) {
           
// Use non-blocking reading for first loop
           
if (($data === '') and ($timeout 0)) {
               
stream_set_blocking($cfalse);
               
$endtimeOut time() + $timeout;
               
$str '';
                while ((
time() < $endtimeOut) and (strlen($str) < 515) and !feof($c)) {
                   
sleep(1);  // Note: This may require tuning
                   
$str.= fgets($c515);
                }
               
// Handling first-read timeout
               
if (time() >= $endtimeOut) {
                   
trigger_error('Timeout'E_USER_WARNING);
                    break;
                }
               
stream_set_blocking($ctrue);
            } else {
               
$str fgets($c515);
            }
           
$data.= $str;

           
// Handling of "traditional" timeout
           
$info stream_get_meta_data($c);
            if (
$info['timed_out']) {
                   
trigger_error('Timeout'E_USER_WARNING);
                    break;
            }
        }
?>
2016-01-10 01:06:27
http://php5.kiev.ua/manual/ru/function.stream-set-timeout.html
If the timeout fails, because the server remains completely silent, one may have to add stream_select() to make the timeout work. This may be much more efficient that a non-blocking reading operation.

<?php
stream_set_timeout
($c$timeout);
$data '';
$stR = array($this->smtp_conn);
$stW null;
while (
is_resource($c) && !feof($c)) {
    if (!
stream_select($stR$stW$stW$timeout)) {
       
trigger_error('Timeout');
        break;
    }
   
$str fgets($c515);
   
$data.= $str;

   
// Handling of "traditional" timeout
   
$info stream_get_meta_data($c);
     if (
$info['timed_out']) {
       
trigger_error('Timeout');
        break;
    }
}
?>

Background: We had issues with a SMTP server that was addresses unencrypted while expecting TLS encryption. The stream_set_timeout() alone did not work as expected and the script hung for an hour or more.
2016-01-10 15:15:28
http://php5.kiev.ua/manual/ru/function.stream-set-timeout.html

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