3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i = 0 ; $i < 10000 ; $i++) $a = 'foo';
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 - 5.5.10, 5.5.12 - 5.5.13, 5.5.17 - 5.5.19, 5.5.21 - 5.5.24, 5.5.26 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
Output for 5.5.11, 5.5.14 - 5.5.16, 5.5.20, 5.5.25

Process exited with code 137.
preferences:
242.32 ms | 402 KiB | 325 Q