filter_list

Returns a list of all supported filters

&reftitle.description; `array` `filter_list`
&reftitle.parameters; &no.function.parameters;
&reftitle.returnvalues;

Returns an array of names of all supported filters, empty array if there are no such filters. Indexes of this array are not filter IDs, they can be obtained with `filter_id` from a name instead.

&reftitle.examples;

### A `filter_list` example

    <?php
    print_r(filter_list());
    ?>

&example.outputs.similar;

    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] => unsafe_raw
        [12] => email
        [13] => url
        [14] => number_int
        [15] => number_float
        [16] => magic_quotes
        [17] => callback
    )