3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $memory = memory_get_usage(true); print $memory ."\n"; $keys = array(); for ($i = 0; $i<1000; $i++) { $keys[] = 'pref:keyname:' . rand(1000000, 9999999); } asort($keys); print memory_get_usage(true) - $memory;
Output for 7.0.0 - 7.1.0
2097152 0
Output for hhvm-3.12.0
304808 93104
Output for hhvm-3.10.0
303168 93104
Output for 5.4.0 - 5.6.28
262144 262144
Output for 5.3.0 - 5.3.29
786432 262144
Output for 5.2.1 - 5.2.17
262144 0
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/tljZr on line 2
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_usage() in /in/tljZr on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: memory_get_usage() in /in/tljZr on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_usage() in /in/tljZr on line 2