3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $s = get_memory_usage(); $a=255; var_dump(get_memory_usage()-$s); $b = $a;
based on WLrMs
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function get_memory_usage() in /in/g7YkC:2 Stack trace: #0 {main} thrown in /in/g7YkC on line 2
Process exited with code 255.
Output for 5.0.0 - 5.6.28, hhvm-3.12.0
Fatal error: Call to undefined function get_memory_usage() in /in/g7YkC on line 2
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: get_memory_usage() in /in/g7YkC on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: get_memory_usage() in /in/g7YkC on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: get_memory_usage() in /in/g7YkC on line 2