(PHP 5, PHP 7, PHP 8)
stream_get_filters — Retrieve list of registered filters
Retrieve the list of registered filters on the running system.
This function has no parameters.
Returns an indexed array containing the name of all stream filters available.
Example #1 Using stream_get_filters()
<?php
$streamlist = stream_get_filters();
print_r($streamlist);
?>The above example will output something similar to:
Array ( [0] => string.rot13 [1] => string.toupper [2] => string.tolower [3] => string.base64 [4] => string.quoted-printable )