fflush

Flushes the output to a file

Syntax

fflush ( resource $handle ) : bool

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

Returns TRUE on success or FALSE on failure.

Examples

<?

$filename = $_SERVER['DOCUMENT_ROOT'] . '/assets/txt/file.txt';
$mode = 'r+';

$handle = fopen($filename, $mode);

    $contents = fread($handle, filesize($filename));
    
    rewind($handle);
    fwrite($handle, $contents);
    
    rewind($handle);
    $contents = fread($handle, filesize($filename));
    echo "fwrite without fflush: $contents" . PHP_EOL;
    
    rewind($handle);
    fwrite($handle, $contents);
    fflush($handle);
    
    rewind($handle);
    $contents = fread($handle, filesize($filename));
    echo "fwrite with fflush:    $contents";

fclose($handle);

?>
fwrite without fflush: Hello
fwrite with fflush:    Hello

basename

chgrp

chmod

chown

clearstatcache

copy

dirname

disk_free_space

disk_total_space

diskfreespace

fclose

feof

fgetc

fgetcsv

fgets

file

file_exists

file_get_contents

file_put_contents

fileatime

filectime

filegroup

fileinode

filemtime

fileowner

fileperms

filesize

filetype

flock

fnmatch

fopen

fpassthru

fputcsv

fputs

fread

fscanf

fseek

fstat

ftell

ftruncate

fwrite

glob

is_dir

is_executable

is_file

is_link

is_readable

is_uploaded_file

is_writable

is_writeable

lchgrp

lchown

link

linkinfo

lstat

mkdir

move_uploaded_file

pathinfo

pclose

popen

readfile

readlink

realpath

realpath_cache_get

realpath_cache_size

rename

rewind

rmdir

set_file_buffer

stat

symlink

tempnam

tmpfile

touch

umask

unlink

PHP

Home Menu