# fflush

(PHP 4 >= 4.0.1, PHP 5)

fflush — Flushes 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.