3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $startMemory = memory_get_usage(); $a =1; echo memory_get_usage() - $startMemory, ' bytes'; $a + 1;
based on lWddD
Output for hhvm-3.12.0, 7.0.0 - 7.1.0
0 bytes
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.0 - 5.6.28
272 bytes
Output for 5.3.0 - 5.3.29
296 bytes
Output for 5.2.1 - 5.2.17
280 bytes
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/4XA46 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/4XA46 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/4XA46 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/4XA46 on line 3