Php/docs/function.stream-set-read-buffer
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stream_set_read_buffer
(PHP 5 >= 5.3.3, PHP 7)
stream_set_read_buffer — Set read file buffering on the given stream
说明
stream_set_read_buffer
( resource $stream
, int $buffer
) : int
Sets the read buffer. It's the equivalent of stream_set_write_buffer(), but for read operations.
参数
stream
- The file pointer.
buffer
- The number of bytes to buffer. If
buffer
is 0 then read operations are unbuffered. This ensures that all reads with fread() are completed before other processes are allowed to read from that input stream.
返回值
Returns 0 on success, or another value if the request cannot be honored.