fflush
Description
The fflush of Filesystem for PHP flushes the output to a file.
Syntax
fflush(
resource $stream
): boolParameters
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
Returns true on success or false on failure.
Examples
1
<?
$filename = $_SERVER['DOCUMENT_ROOT'] . '/assets/txt/1.txt';
$mode = 'r+';
$stream = fopen($filename, $mode);
$contents = fread($stream, filesize($filename));
rewind($stream);
fwrite($stream, $contents);
rewind($stream);
$contents = fread($stream, filesize($filename));
echo "fwrite without fflush: $contents" . PHP_EOL;
rewind($stream);
fwrite($stream, $contents);
fflush($stream);
rewind($stream);
$contents = fread($stream, filesize($filename));
echo "fwrite with fflush: $contents";
fclose($stream);
?>fwrite without fflush: hello fwrite with fflush: hello
Links
Filesystem
- 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
