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PHP Manual

# stream_set_write_buffer

(PHP 4 >= 4.3.0, PHP 5)

stream_set_write_buffer — Sets file buffering on the given stream

### 설명

int stream_set_write_buffer ( resource `$stream` , int `$buffer` )

Sets the buffering for write operations on the given `stream` to `buffer` bytes.

Output using fwrite() is normally buffered at 8K. This means that if there are two processes wanting to write to the same output stream (a file), each is paused after 8K of data to allow the other to write.

### 인수

`stream`

  The file pointer.

`buffer`

  The number of bytes to buffer. If `buffer` is 0 then write operations are unbuffered. This ensures that all writes with fwrite() are completed before other processes are allowed to write to that output stream.

### 반환값

Returns 0 on success, or EOF if the request cannot be honored.

### 예제

Example #1 stream_set_write_buffer() example

The following example demonstrates how to use stream_set_write_buffer() to create an unbuffered stream.

`<?php
$fp = fopen($file, "w");
if ($fp) {
stream_set_write_buffer($fp, 0);
fwrite($fp, $output);
fclose($fp);
}
?>`

### 참고

- fopen() - Opens file or URL
- fwrite() - Binary-safe file write

stream_set_timeout
stream_socket_accept
Stream 함수 목록
PHP Manual