3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = []; for ($i = 0; $i < 10000; ++$i) $a[$i * 2] = $i; var_dump(memory_get_usage());
Output for 7.4.0
int(1042592)
Output for 7.3.0 - 7.3.12
int(1042512)
Output for 7.2.17 - 7.2.25
int(973136)
Output for 7.1.26 - 7.1.33
int(936464)
Output for 7.1.0 - 7.1.1, 7.1.7
int(936536)
Output for 7.1.2 - 7.1.6
int(936624)
Output for 7.0.0 - 7.0.20
int(936552)
preferences:
93.22 ms | 401 KiB | 65 Q