filter_list

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

filter_listRetorna a lista de todos os filtros suportados

Descrição

filter_list(): array

Parâmetros

Esta função não possui parâmetros.

Valor Retornado

Retorna um array de nomes de todos os filtros suportados, um array vazio se não houver filtros. Índices deste array não são IDs de filtros, estes podem ser obtidos com filter_id() a partir do nome.

Exemplos

Exemplo #1 Um exemplo de filter_list()

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

O exemplo acima produzirá algo semelhante a:

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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User Contributed Notes 4 notes

up
2
El diablo
6 years ago
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
)
up
-2
vb dot jyoti at gmail dot com
15 years ago
<?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
up
-2
shaman_master at list dot ru
4 years ago
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
up
-12
larry at weblabsperth dot com dot au
7 years ago
Output a table of Filter IDs as Integers with corresponding Constant IDs:

<?php

echo '<table>';
echo
'<tr>';
echo
'<th>Filter Name</th>';
echo
'<th>Filter Int ID</th>';
echo
'<th>Filter Const ID</th>';
echo
'</tr>';

foreach (
filter_list() as $id =>$filter) {
   
$const = 'FILTER_';
    switch(
$filter) {
        case
'int':
        case
'boolean':
        case
'float':
           
$const .= 'VALIDATE_' . $filter;
        break;

        case
'string':
        case
'stripped':
        case
'encoded':
        case
'special_chars':
        case
'full_special_chars':
        case
'unsafe_raw':
        case
'email':
        case
'url':
        case
'number_int':
        case
'number_float':
        case
'magic_quotes':
           
$const .= 'SANITIZE_' . $filter;
        break;
    }

    if (
substr($filter,0,8)=='validate' || $filter=='callback')
       
$const .= $filter;

    echo
'<tr><td>' . $filter . '</td><td align="center">' . filter_id($filter) . '</td><td>' . strtoupper($const) . '</td></tr>';
}

echo
'</table>';

?>
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