3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $start_ram = memory_get_usage(); echo "hi\n"; $end_ram = memory_get_usage(); echo $end_ram - $start_ram;
Output for 7.0.0 - 7.1.0
hi 32
Output for hhvm-3.12.0
hi 0
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.2.3 - 5.2.9, 5.3.0 - 5.3.29, 5.6.8 - 5.6.28
hi 184
Output for 5.4.0 - 5.5.35
hi 168
Output for 5.2.10 - 5.2.17
hi 176
Output for 5.2.1 - 5.2.2
hi 144
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/SWdGa on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_usage() in /in/SWdGa on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: memory_get_usage() in /in/SWdGa on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_usage() in /in/SWdGa on line 3