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
)
filter_list
(PHP 5 >= 5.2.0, PHP 7)
filter_list — Returns a list of all supported filters
Description
filter_list
( void
) : array
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
)
add a note
User Contributed Notes 3 notes
El diablo ¶
1 year ago
vb dot jyoti at gmail dot com ¶
11 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
larry at weblabsperth dot com dot au ¶
3 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>';
?>
