Using PHP and google Maps Api to work out distance between 2 latitude and longitude

Question

Just wondering how to work out distance between 2 latitude and longitude using PHP and Google Maps Api.

Any one got any idea or links to examples?

Answer 1

Calculate distance between two points in google maps V3

I think you might be after something like this which has a few good answers.

Answer 2

Check these links:

https://developers.google.com/maps/documentation/javascript/distancematrix?hl=it-IT

Calculate distance between two points in google maps V3

Answer 3

function calcDistance($lat1,$Lang1, $lat2, $Lang2)
{
    //RAD
    $b1 = ($lat1/180)*M_PI;
    $b2 = ($lat2/180)*M_PI;
    $l1 = ($Lang1/180)*M_PI;
    $l2 = ($Lang2/180)*M_PI;
    //equatorial radius
    $r = 6378.137;
    // Formel
    $e = acos( sin($b1)*sin($b2) + cos($b1)*cos($b2)*cos($l2-$l1) );
    return round($r*$e, 4);
}