3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = []; for ($i = 10000; $i >= 0; --$i) $a[$i] = $i; var_dump(memory_get_usage());
Output for 7.4.0 - 7.4.1
int(1042592)
Output for 7.3.0 - 7.3.13
int(1042512)
Output for 7.2.0 - 7.2.26
int(973056)
Output for 7.1.0 - 7.1.33
int(936384)
Output for 7.0.0 - 7.0.33
int(936400)
Output for 5.6.0 - 5.6.40
int(1708200)
preferences:
126.8 ms | 401 KiB | 157 Q