The popular open-source contract for web designers and developers by Stuff & Nonsense
- Originally published: 23/12/2008
- Revised date: 15/12/2013
- Original post
| <?php | |
| function distance($lat1, $lng1, $lat2, $lng2) | |
| { | |
| // convert latitude/longitude degrees for both coordinates | |
| // to radians: radian = degree * π / 180 | |
| $lat1 = deg2rad($lat1); | |
| $lng1 = deg2rad($lng1); | |
| $lat2 = deg2rad($lat2); | |
| $lng2 = deg2rad($lng2); |