3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function getusageempty() { $start = memory_get_usage(); return memory_get_usage() - $start; } function getusage() { $start = memory_get_usage(); $a = 256; return memory_get_usage() - $start - getusageempty(); } echo getusage();
Output for 7.0.0 - 7.1.0
0
Output for 5.3.0 - 5.6.28
48
Output for 5.2.1, 5.2.10 - 5.2.17
136
Output for 5.2.2 - 5.2.9
40
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/HnXNv on line 8
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_usage() in /in/HnXNv on line 8
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: memory_get_usage() in /in/HnXNv on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_usage() in /in/HnXNv on line 8