Php/docs/function.stream-set-timeout
stream_set_timeout
(PHP 4 >= 4.3.0, PHP 5, PHP 7)
stream_set_timeout — Set timeout period on a stream
说明
stream_set_timeout
( resource $stream
, int $seconds
[, int $microseconds = 0
] ) : bool
Sets the timeout value on stream,
expressed in the sum of seconds and
microseconds.
When the stream times out, the 'timed_out' key of the array returned by
stream_get_meta_data() is set to true, although no
error/warning is generated.
参数
stream- The target stream.
seconds- The seconds part of the timeout to be set.
microseconds- The microseconds part of the timeout to be set.
返回值
成功时返回 true， 或者在失败时返回 false。
范例
Example #1 stream_set_timeout() example
<?php$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; }}?>
注释
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.
