print all filter as an array

General Format
=============

filter_list()

Example
======

<?php
echo “<pre>”;
print_r(filter_list());
?>

Output
=====

Array
(
[0] => int
[1] => boolean
[2] => float
[3] => validate_regexp
[4] => validate_url
[5] => validate_email
[6] => validate_ip
[7] => string
[8] => stripped
[9] => encoded
[10] => special_chars
[11] => full_special_chars
[12] => unsafe_raw
[13] => email
[14] => url
[15] => number_int
[16] => number_float
[17] => magic_quotes
[18] => callback
)