3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $max = 1000; $arr = array_fill(0, $max, 1); $mem = memory_get_usage(true); $count = 0; foreach ($arr as $key => $val) { $count ++; $arr[$max+1] = 9999; } echo "123:"; echo $count.' : '.memory_get_usage(true)-$mem;
Output for 7.1.0
123: Notice: A non well formed numeric value encountered in /in/dh6m2 on line 15 -2096152
Output for 7.0.0 - 7.0.14
123:-2096152
Output for hhvm-3.12.0
123:-317552
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.0 - 5.6.28
123:-523288
Output for 5.3.0 - 5.3.29
123:-785432
Output for 5.2.1 - 5.2.17
123:-261144
Output for 5.0.0 - 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/dh6m2 on line 5
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_usage() in /in/dh6m2 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: memory_get_usage() in /in/dh6m2 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_usage() in /in/dh6m2 on line 5