PHP filter_list() Function
Complete PHP Filter Reference
Definition and Usage
The filter_list() function returns an array of all supported filters.
Syntax
Tips and Notes
Note: The results of this function is not the filter ID, but filter
names. Use the filter_id() function to get the filter ID
Example
<?php
print_r(filter_list());
?>
The output of the code should be something like this:
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
)
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