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PHP Manual


(PHP 4 >= 4.3.0, PHP 5)

stream_set_timeoutSet timeout period on a stream


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.



The target stream.


The seconds part of the timeout to be set.


The microseconds part of the timeout to be set.

Return Values

Returns TRUE on success or FALSE on failure.


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.


Example #1 stream_set_timeout() example

if (!
$fp) {
"Unable to open\n";
} else {

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

$info stream_get_meta_data($fp);

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




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

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