inputfilter-test.php

<?php

declare(strict_types=1);

require_once __DIR__ . '/vendor/autoload.php';

use Laminas\Filter;
use Laminas\Validator;

final class InputFilter extends \Laminas\InputFilter\InputFilter
{
    public function __construct()
    {
        $filters = [
            ['name' => Filter\StringTrim::class],
            ['name' => Filter\DateTimeFormatter::class]
        ];
        $validators = [
            ['name' => Validator\NotEmpty::class],
            [
                'name' => Validator\Date::class,
                'options' => ['format' => DateTime::ATOM]
            ]
        ];

        $this->add([
            'type' => \Laminas\InputFilter\InputFilter::class,
            'start' => [
                'required' => true,
                'break_chain_on_failure' => true,
                'filters' => $filters,
                'validators' => $validators
            ],
            'end' => [
                'required' => true,
                'filters' => $filters,
                'validators' => array_merge($validators, [
                    [
                        'name' => Validator\Callback::class,
                        'options' => [
                            'callback' => static function (string $value, array $context = []): bool {
                                $start = null;
                                try {
                                    $start = new DateTimeImmutable($context['start']);
                                } catch (Exception $e) {
                                    return false;
                                }

                                return DateTimeImmutable::createFromFormat(DateTime::ATOM, $value) > $start;
                            }
                        ]
                    ]
                ])
            ]
        ], 'duration');
    }
}

$inputFilter = new InputFilter();
$inputFilter->setData([
    'duration' => [
        'start' => '2020-03-31T18:00',
        'end' => '2020-03-31T21:59:59',
    ]
]);
$inputFilter->isValid();