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Latest Version [8.00202205221] Last Updated [May-22-2022]

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PHP Manual [stream_set_blocking]

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PHP Manual || Stream Functions

(PHP 4 >= 4.3.0, PHP 5, PHP 7)

stream_set_blockingSet blocking/non-blocking mode on a stream

Description

stream_set_blocking ( resource $stream , bool $mode ) : bool

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).

Parameters

stream

The stream.

mode

If mode is FALSE, the given stream will be switched to non-blocking mode, and if TRUE, 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.

Return Values

Returns TRUE on success or FALSE on failure.

Notes

Note:

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

Note:

On Windows, this has no affect on local files. Non-blocking IO for local files is not supported on Windows.

See Also

  • 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


PHP Manual || Stream Functions