I need create one php page for facebook applications and want added to my assets folder.

in my assets folder have another folder with the name fan-page. Inside that have .htaccess and index.php

.htaccess

<IfModule mod_rewrite.c>
	RewriteEngine On    # Turn on the rewriting engine
	RewriteRule .* /index.php [L]
</IfModule>

index.php

<?php echo "hello facebook word"?>

When access to page have the message

The action 'fan_page' does not exist in class AssetAdmin

Any ideia to access content of php?