3v4l.org

run code in 300+ PHP versions simultaneously
<?php function diff($this, $that){ $diff = abs(deg2rad($this)-deg2rad($that)); $diff = min((2 * PI) - abs, abs); echo rad2deg($diff) .PHP_EOL; } diff(-1,1);//2 diff(-90,90);//180 diff(-179,179);//2

preferences:
34.34 ms | 402 KiB | 5 Q