filter_list
(PHP 5 >= 5.2.0, PECL filter:0.11.0)
filter_list — Returns a list of all supported filters
Описание
array filter_list
( void
)
Возвращаемые значения
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.
Примеры
Пример #1 A filter_list() example
<?php
print_r(filter_list());
?>
Результатом выполнения данного примера будет что-то подобное:
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
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
)
2 strings, but it's faster (-2 calls) and not the longest<?php
$filters = filter_list();
$filters = array_combine($filters, array_map('filter_id', $filters));
?>
also I use id's as values: $filters[$filter] - get filter id by name