3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 0; for ($number0 = 0; $number0 < 1000000; $number0++) if (5 === hexdec(substr(hash("sha256",$number0."-0405233536-371638"),0,8)) % 15) $i++; var_dump($i);;
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.22, 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
int(66819)
Output for 5.5.36 - 5.5.37, 5.6.23

Process exited with code 137.
preferences:
206.25 ms | 401 KiB | 237 Q