3v4l.org

run code in 300+ PHP versions simultaneously
<?php printf("2 ** 3 == %d\n", 2 ** 3); printf("2 ** 3 ** 2 == %d\n", 2 ** 3 ** 2); $a = 2; $a **= 3; printf("a == %d\n", $a);

preferences:
35.11 ms | 402 KiB | 5 Q