I'm using Parse.com for my back-end, and in my table I have column named geopoint whose time type is GeoPoint. In another table I have the same. So I need to calculate distance between those two geopoints. Is there way to do that with parse? Or you can provide another solution. I'm using PHP
Without any code snippets it would be hard to give you the answer. I can point you in the right direction though.
As you are only using 2 points I assume you want Euclidean distance. (Straight line or 'as the crow flies')?
Wolfram has an excellent page on this here: http://mathworld.wolfram.com/Distance.html
It is (slightly) simplified here too: http://www.cut-the-knot.org/pythagoras/DistanceFormula.shtml
If you are still having trouble then post code snippets. Ideally something where you are already accessing these objects.