3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(PHP_OS); echo php_uname();
Output for 5.6.28, 7.0.14 - 7.0.20, 7.1.5 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 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
string(5) "Linux" Linux php_shell 4.8.6-1-ARCH #1 SMP PREEMPT Mon Oct 31 18:51:30 CET 2016 x86_64
Output for 7.1.0
string(5) "Linux" Linux php_shell 4.8.11-1-ARCH #1 SMP PREEMPT Sun Nov 27 09:26:14 CET 2016 x86_64
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.25, 7.0.0 - 7.0.11
string(5) "Linux" Linux php_shell 4.7.2-1-ARCH #1 SMP PREEMPT Sat Aug 20 23:02:56 CEST 2016 x86_64

preferences:
258.89 ms | 404 KiB | 359 Q