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filter_list

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

filter_listLiefert eine Liste aller unterstützten Filter

Beschreibung

filter_list(): array

Parameter-Liste

Diese Funktion besitzt keine Parameter.

Rückgabewerte

Gibt ein Array mit den Namen aller unterstützter Filter zurück oder ein leeres Array, wenn keine Filter zur Verfügung stehen. Der Index des Arrays entspricht nicht der Filter-ID, diese kann durch die Funktion filter_id() ermittelt werden.

Beispiele

Beispiel #1 filter_list()-Beispiel

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

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

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
3
El diablo
4 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
13 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
-3
shaman_master at list dot ru
2 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
-11
larry at weblabsperth dot com dot au
5 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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