3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x=''; for ($i=0; $i<1024; $i++) { $x .= str_repeat(' ', 1024); } echo memory_get_usage();
Output for 7.1.0
1398808
Output for 7.0.0 - 7.0.14
1398824
Output for hhvm-3.12.0
8388608
Output for hhvm-3.10.0
6291456
Output for 5.5.24 - 5.6.21
1265792
Output for 5.4.10 - 5.4.45
1266312
Output for 5.4.0 - 5.4.9
1265784
Output for 5.3.11 - 5.3.29
1668912
Output for 5.3.0 - 5.3.10
1668608
Output for 5.2.10 - 5.2.17
1126536
Output for 5.2.7 - 5.2.9
1127016
Output for 5.2.3 - 5.2.6
1127336
Output for 5.2.1 - 5.2.2
1125264
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/RCvc6 on line 9
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_usage() in /in/RCvc6 on line 9
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: memory_get_usage() in /in/RCvc6 on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_usage() in /in/RCvc6 on line 9