3v4l.org

run code in 300+ PHP versions simultaneously
<?php $lat = 60; $lon = 160; $nLon = ($lon / 360) + 0.5; $nLat = abs((asinh(tan(deg2rad($lat))) / M_PI / 2) - 0.5); var_dump($nLon, $nLat);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
float(0.9444444444444444) float(0.2903996408605087)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
float(0.94444444444444) float(0.29039964086051)
preferences:
288.11 ms | 405 KiB | 460 Q