stream_set_blocking Set blocking/non-blocking mode on a stream


stream_set_blocking

(PHP 4 >= 4.3.0, PHP 5)

stream_set_blockingSet blocking/non-blocking mode on a stream

说明

bool stream_set_blocking ( resource $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).

参数

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.

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE.

更新日志

版本 说明
4.3.0 Prior to PHP 4.3.0, this function only worked on socket based streams.

注释

Note:

This function was previously called as set_socket_blocking() and later socket_set_blocking() but this usage is deprecated.

参见

  • stream_select() - Runs the equivalent of the select() system call on the given arrays of streams with a timeout specified by tv_sec and tv_usec

«  stream_select
» stream_set_read_buffer
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