(PHP 5)
stream_get_filters — Retrieve list of registered filters
Returns an indexed array containing the name of all stream filters available on the running system.
Example#1 Using stream_get_filters()
<?php
$streamlist = stream_get_filters();
print_r($streamlist);
?>
Output will be similar to the following. Note: there may be more or fewer filters in your version of PHP.
Array (
[0] => string.rot13
[1] => string.toupper
[2] => string.tolower
[3] => string.base64
[4] => string.quoted-printable
)
See also stream_filter_register(), and stream_get_wrappers().