3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $f = function($fun, $x) { return $fun($fun, $x*$x); }; $f($f,1);
based on sLW8o
Output for 7.0.0 - 7.1.7, 7.2.0
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 262144 bytes) in /in/kEC2O on line 3
Process exited with code 255.
Output for 7.1.10

Process exited with code 137.
Output for 5.5.24 - 5.6.28
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 130968 bytes) in /in/kEC2O on line 3
Process exited with code 255.
Output for 5.4.12 - 5.4.45
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 32 bytes) in /in/kEC2O on line 3
Process exited with code 255.
Output for 5.3.22 - 5.3.29
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 523800 bytes) in /in/kEC2O on line 3
Process exited with code 255.