3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=array(); while (true) $a[]=microtime(); var_dump($a);
Output for 7.1.21 - 7.1.22, 7.2.10

Process exited with code 137.
Output for 5.6.38
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 32 bytes) in /in/G6BPn on line 3
Process exited with code 255.
preferences:
50.83 ms | 401 KiB | 9 Q