3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $startMemory = memory_get_usage(); $array = range(1, 100000); echo memory_get_usage() - $startMemory, ' bytes';
Output for 7.0.0 - 7.1.0
4198480 bytes
Output for hhvm-3.10.0 - 3.12.0
2097152 bytes
Output for 5.5.0 - 5.6.28
14649032 bytes
Output for 5.4.10 - 5.4.45
14649064 bytes
Output for 5.4.0 - 5.4.9
14649048 bytes
Output for 5.3.11 - 5.3.29
14649040 bytes
Output for 5.3.0 - 5.3.10
14649024 bytes
Output for 5.2.10 - 5.2.17
13849568 bytes
Output for 5.2.7 - 5.2.9
13850632 bytes
Output for 5.2.6
13850648 bytes
Output for 5.2.3 - 5.2.5
13850656 bytes
Output for 5.2.2
13850592 bytes
Output for 5.2.1
13850096 bytes
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/4aYPB 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/4aYPB 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/4aYPB 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/4aYPB on line 3