PHP Manual: Set 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($fp, "GET / HTTP/1.0\r\n\r\n");
    stream_set_timeout($fp, 2);
    $res = fread($fp, 2000);

    $info = stream_get_meta_data($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.

stream_set_timeout