3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function fib($number) { if ($number == 0 || $number == 0) { return $number; } return fib($number - 1) + fib($number - 2); } echo fib(8);
based on HgPhD
Output for 7.0.0 - 7.0.6, 7.1.0 - 7.1.7, 7.2.0
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 262144 bytes) in /in/FJ29V on line 4
Process exited with code 255.
Output for 7.0.20, 7.1.10

Process exited with code 137.
Output for 5.4.0 - 5.6.28
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 130968 bytes) in /in/FJ29V on line 8
Process exited with code 255.
Output for 5.3.19 - 5.3.29
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 523800 bytes) in /in/FJ29V on line 8
Process exited with code 255.