3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(); for ($i = 0; $i < 100000; ++$i) { $a[] = $i . 'a'; } echo memory_get_peak_usage(TRUE);
Output for 7.0.0 - 7.1.0
8392704
Output for hhvm-3.13.2
5726752
Output for hhvm-3.12.0
5726592
Output for hhvm-3.10.0
5724968
Output for 5.4.0 - 5.6.28
18350080
Output for 5.3.0 - 5.3.29
18874368
Output for 5.2.6 - 5.2.17
17563648
Output for 5.2.1 - 5.2.5
17301504
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_peak_usage() in /in/PqsM9 on line 7
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_peak_usage() in /in/PqsM9 on line 7
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: memory_get_peak_usage() in /in/PqsM9 on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_peak_usage() in /in/PqsM9 on line 7