fflush
(PHP 4 >= 4.0.1, PHP 5, PHP 7, PHP 8)
fflush — Flushes the output to a file
Description
fflush(resource $stream): bool
This function forces a write of all buffered output to the resource pointed to by the file stream.
Parameters
-
stream -
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($file); ftruncate($file, ftell($file)); fclose($file); ?>
See Also
- clearstatcache() - Clears file status cache
- fwrite() - Binary-safe file write
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.fflush.php
