3v4l.org

run code in 300+ PHP versions simultaneously
<?php $age=10; $nom="john"; $metier="flutiste"; define ("PHRASE","$age+$nom+$metier"); echo PHRASE; ?>
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
10+john+flutiste

preferences:
220.28 ms | 404 KiB | 223 Q