3v4l.org

run code in 300+ PHP versions simultaneously
<?php $tsid = '-123'; if (!filter_var($tsid, FILTER_VALIDATE_INT, array('options' => array('min_range' => 0)))) { echo "err"; } else { echo "ok"; }
Output for 5.4.1 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
err
preferences:
186.95 ms | 404 KiB | 269 Q