(PHP 4 >= 4.3.0, PHP 5)
stream_set_blocking — Set blocking/non-blocking mode on a stream
$stream
, int $mode
)
Sets blocking or non-blocking mode on a stream.
This function works for any stream that supports non-blocking mode (currently, regular files and socket streams).
stream
The stream.
mode
If mode is 0, the given stream
will be switched to non-blocking mode, and if 1, it
will be switched to blocking mode. This affects calls like
fgets() and fread()
that read from the stream. In non-blocking mode an
fgets() call will always return right away
while in blocking mode it will wait for data to become available
on the stream.
成功时返回 TRUE， 或者在失败时返回 FALSE。
| 版本 | 说明 |
|---|---|
| 4.3.0 | Prior to PHP 4.3.0, this function only worked on socket based streams. |
Note:
This function was previously called as set_socket_blocking() and later socket_set_blocking() but this usage is deprecated.