3v4l.org

run code in 300+ PHP versions simultaneously
<?php $good_input = array('num' => 42); $bad_input = array('num' => 'foo'); $spec = array('num' => FILTER_VALIDATE_INT); $filtered = filter_var_array($good_input, $spec); var_dump($filtered == $good_input); $filtered = filter_var_array($bad_input, $spec); var_dump($filtered == $bad_input);
Output for 5.6.0 - 5.6.24, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.14, 8.4.1
bool(true) bool(false)

preferences:
82.67 ms | 408 KiB | 5 Q