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run code in 300+ PHP versions simultaneously
<?php $rad = 1; $deg = rad2deg($rad); printf("rad: %.f = deg: %.25f \n", $rad, $deg); $deg = 1; $rad = deg2rad($deg); printf("rad: %.25f = deg: %.f \n", $rad, $deg);

preferences:
43.41 ms | 402 KiB | 5 Q