Filesystem Functions
PHP Manual

fflush

(PHP 4 >= 4.0.1, PHP 5, PHP 7)

fflushFlushes the output to a file

Description

bool fflush ( resource $handle )

This function forces a write of all buffered output to the resource pointed to by the file handle.

Parameters

handle

The file pointer must be valid, and must point to a file successfully opened by fopen() or fsockopen() (and not yet closed by fclose()).

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #1 File write example using fflush()

<?php
$filename 
'bar.txt';

$file fopen($filename'r+');
rewind($file);
fwrite($file'Foo');
fflush($file);
ftruncate($fileftell($file));
fclose($file);
?>

See Also


Filesystem Functions
PHP Manual