3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = new \DateTime; $b = new \DateTime; var_dump($a < $b);
Output for 7.1.0 - 7.1.2, 7.1.4 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 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 - 8.3.15, 8.4.1 - 8.4.2
bool(true)
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.3
bool(false)
preferences:
79.69 ms | 407 KiB | 5 Q