filter_list

(PHP 5 >= 5.2.0)

filter_listReturns a list of all supported filters

Description

array filter_list ( void )

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 #1 A filter_list() example

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

The above example will output something similar to:

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
)

Коментарии

<?php
echo "<pre>";
print_r(filter_list());
echo 
"</pre>";
foreach (
filter_list() as $key => $value)
{
echo 
"<br>".$key."=".$value.'='.filter_id($value);
}
?>

0=int=257
1=boolean=258
2=float=259
3=validate_regexp=272
4=validate_url=273
5=validate_email=274
6=validate_ip=275
7=string=513
8=stripped=513
9=encoded=514
10=special_chars=515
11=unsafe_raw=516
12=email=517
13=url=518
14=number_int=519
15=number_float=520
16=magic_quotes=521
17=callback=1024
2008-08-13 14:57:58
http://php5.kiev.ua/manual/ru/function.filter-list.html
Автор:
Get filter_list() with filter_id() as key.

<?php
print_r
(array_flip(array_map('filter_id'array_combine(filter_list(), filter_list()))));
?>

Array
(
    [257] => int
    [258] => boolean
    [259] => float
    [272] => validate_regexp
    [277] => validate_domain
    [273] => validate_url
    [274] => validate_email
    [275] => validate_ip
    [276] => validate_mac
    [513] => stripped
    [514] => encoded
    [515] => special_chars
    [522] => full_special_chars
    [516] => unsafe_raw
    [517] => email
    [518] => url
    [519] => number_int
    [520] => number_float
    [521] => magic_quotes
    [1024] => callback
)
2018-03-07 10:43:27
http://php5.kiev.ua/manual/ru/function.filter-list.html
2 strings, but it's faster (-2 calls) and not the longest
<?php
$filters 
filter_list();
$filters array_combine($filtersarray_map('filter_id'$filters));
?>
also I use id's as values: $filters[$filter] - get filter id by name
2020-03-18 23:13:01
http://php5.kiev.ua/manual/ru/function.filter-list.html

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