stream_set_timeout

(PHP 4 >= 4.3.0, PHP 5)

stream_set_timeoutSet timeout period on a stream

Description

bool stream_set_timeout ( resource $stream , int $seconds [, int $microseconds = 0 ] )

Sets the timeout value on stream, expressed in the sum of seconds and microseconds.

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.

Parameters

stream

The target stream.

seconds

The seconds part of the timeout to be set.

microseconds

The microseconds part of the timeout to be set.

Return Values

Returns TRUE on success or FALSE on failure.

Changelog

Version Description
4.3.0 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.

Examples

Example #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;
    }

}
?>

Notes

Note:

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() - Open Internet or Unix domain socket connection
  • fopen() - Opens file or URL

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
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
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

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