Code sagt mehr als tausend Worte:
<?php
/**
* Use a callback function to filter UUIDs from POST with filter_input_array()
* c0fc2876-2551-426b-8cc1-69730d22774a
* 2c91ff35-7089-4383-91e3-0976a7bf06a9
* ddc25d51-d2a7-4b32-9ca8-3cf70d89dffb
*/
require '../../vendor/autoload.php';
use Laminas\Validator\Uuid;
$uuid = new Uuid();
function filterUuid(string $value): string
{
global $uuid;
return $uuid->isValid($value) ? $value : '';
}
class MyStaticFilter
{
protected static Uuid $uuid;
public static function filterUuid(string $value): string
{
if (!isset(self::$uuid)) {
self::$uuid = new Uuid();
}
return self::$uuid->isValid($value) ? $value : '';
}
}
class MyFilter
{
protected Uuid $uuid;
public function filterUuid(string $value): string
{
if (!isset($this->uuid)) {
$this->uuid = new Uuid();
}
return $this->uuid->isValid($value) ? $value : '';
}
}
$myFilter = new MyFilter();
$call = (int)filter_input(INPUT_POST, 'callback', FILTER_SANITIZE_NUMBER_INT);
switch ($call) {
case 1:
$uuids = filter_input_array(INPUT_POST, ['anuuid' => [
'filter' => FILTER_CALLBACK,
'flags' => FILTER_REQUIRE_ARRAY,
'options' => 'filterUuid',
]]);
break;
case 2:
$uuids = filter_input_array(INPUT_POST, ['anuuid' => [
'filter' => FILTER_CALLBACK,
'flags' => FILTER_REQUIRE_ARRAY,
'options' => ['MyStaticFilter', 'filterUuid'],
]]);
break;
case 3:
$uuids = filter_input_array(INPUT_POST, ['anuuid' => [
'filter' => FILTER_CALLBACK,
'flags' => FILTER_REQUIRE_ARRAY,
'options' => [$myFilter, 'filterUuid'],
]]);
break;
default:
}
$uuids = $uuids['anuuid'] ?? [];
?>
<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="utf-8">
<title>filter uuid</title>
<link href="../../../w3.css" media="screen" rel="stylesheet" type="text/css">
<body>
<div class="w3-container">
<form action="filter-uuid.php" method="post" style="width: 400px">
<label class="w3-block">1. UUID <input type="text" class="w3-input" name="anuuid[]" value="<?php echo $uuids[0] ?? '' ?>"></label>
<label class="w3-block">2. UUID <input type="text" class="w3-input" name="anuuid[]" value="<?php echo $uuids[1] ?? '' ?>"></label>
<label class="w3-block">4. UUID <input type="text" class="w3-input" name="anuuid[]" value="<?php echo $uuids[2] ?? '' ?>"></label>
<select class="w3-select" name="callback">
<option value="1" <?php echo $call == 1 ? 'selected="selected"' : '' ?>>function</option>
<option value="2" <?php echo $call == 2 ? 'selected="selected"' : '' ?>>static</option>
<option value="3" <?php echo $call == 3 ? 'selected="selected"' : '' ?>>object</option>
</select>
<button type="submit" class="w3-button w3-blue-gray">ok</button>
</form>
</div>
<div class="w3-container">
<pre><?= print_r($uuids, true) ?></pre>
</div>
</body>
https://www.php.net/manual/de/function.filter-input-array