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PHP : Function Reference : Filter Functions : filter_list

filter_list

Returns a list of all supported filters (PHP 5 >= 5.2.0, PECL filter:0.11.0)
array filter_list ( )

Return Values

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.

Examples

Example 676. A filter_list() example

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<?php

print_r(filter_list());
?>

The above example will output something similar to:

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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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filter_has_var
filter_id
filter_input_array
filter_input
filter_list
filter_var_array
filter_var

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