3v4l.org

run code in 300+ PHP versions simultaneously
<?php for($i = new \DateTime(); $i < new \DateTime('- 50 years'); $i->add(new \DateInterval('P1Y'))){ echo $i->format('Y') . "<br>\n"; }
Output for 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 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 - 8.2.19, 8.3.0 - 8.3.7
preferences:
264.7 ms | 404 KiB | 257 Q