Php fflush function

Fflush
("= 4.0.1, PHP 5" in PHP 4)

Fflush-refresh the output to a file

Description
Boolean fflush (resource $ processing)
This function is used to write the file handle pointed to by all buffered output resources.

Parameters

Handle
The file pointer must be valid and must point to a file that successfully opens fopen () or fsockopen () (and has not closed fclose ()).


Return value
Returns TRUE or FALSE.

Instance

For example, to write a file No. 1, for example, using fflush (),

<? Php
$ Filename = 'bar.txt ';

$ File = fopen ($ filename, 'R + ');
Rewind ($ file );
Fwrite ($ file, 'Foo ');
Fflush ($ file );
Ftruncate ($ file, ftell ($ file ));
Fclose ($ file );
?>