3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo pow(2, 0); echo "\n"; echo pow(0, 0); echo "\n"; echo pow(-2, 2); echo "\n"; echo pow(2, 2); echo "\n"; echo pow(-2, -2); echo "\n"; echo pow(2, -2); echo "\n";

preferences:
45.46 ms | 402 KiB | 5 Q