[PHP] Execute flash files with PHP

[R B]

Hello.

I have two scripts in php that reads a .swf or .flv movie file, like this:

SCRIPT # 1

<?php

$movie = "movie.swf";

readfile($movie);
?>

SCRIPT # 2

<?php

$movie = "movie.flv";

readfile($movie);
?>

The script # 1 with the .swf file works fine: the video is executed with
streaming.
The script # 2 with the .flv file  is executed but without streaming.

If i execute the movie.flv directly (without the php script), then it´s
executed with streaming.

Do you know how can i do to execute the .flv file with php and with
straming?
I tried with fopen, readfile, but don´t works.

Thank you