SplFileObject::fflush

(PHP 5 >= 5.1.0, PHP 7)

SplFileObject::fflush — Flushes the output to the file

说明

public SplFileObject::fflush ( void ) : bool

Forces a write of all buffered output to the file.

参数

此函数没有参数。

返回值

成功时返回 TRUE， 或者在失败时返回 FALSE。

范例

Example #1 SplFileObject::fflush() example

<?php
$file = new SplFileObject('misc.txt', 'r+');
$file->rewind();
$file->fwrite("Foo");
$file->fflush();
$file->ftruncate($file->ftell());
?>

参见

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