3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $max = 100; $arr = array_fill(0, $max, 1); //$mem = memory_get_usage(true); foreach ($arr as $key=>$val) { $arr[$max+1] = 9999; } echo memory_get_peak_usage();
Output for 7.1.0
381680
Output for 7.0.0 - 7.0.14
381664
Output for 5.5.24 - 5.6.28
239488
Output for 5.4.10 - 5.4.45
239424
Output for 5.4.0 - 5.4.9
238896
Output for 5.3.11 - 5.3.29
642336
Output for 5.3.0 - 5.3.10
642032
Output for 5.2.10 - 5.2.17
100360
Output for 5.2.7 - 5.2.9
100392
Output for 5.2.3 - 5.2.6
100712
Output for 5.2.2
98632
Output for 5.2.1
98104
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_peak_usage() in /in/KcDHc on line 11
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/KcDHc on line 11
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/KcDHc on line 11
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/KcDHc on line 11