3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2014-09-17T22:40:38Z

<?php
function diff($this, $that){
	$diff = abs((deg2rad($this)+M_PI_2)-(deg2rad($that)+M_PI_2));
	$diff = min( M_PI_2 - $diff, $diff);
	echo rad2deg($diff)
.PHP_EOL;
}

diff(-1,1);//2
diff(-90,90);//180
diff(-179,179);//2

Output
Performance
VLD
References
Branches

abs: documentation ( source)
rad2deg: documentation ( source)
min: documentation ( source)
deg2rad: documentation ( source)

preferences:dark modelive preview

36.2 ms | 402 KiB | 5 Q