xsuchy09/utm-cookie
Utm-Cookie saves utm parameters from url into cookie with defined lifetime (default 7 days). Than cookie (utm) can be used later without parsing google or any other cookies.
时间：2016-06-06 19:39
kyranb/footprints
A simple registration attribution tracking solution for Laravel (UTM Parameters and Referrers)
时间：2016-02-12 15:06
php-coord/php-coord
PHPCoord is a PHP library to aid in handling coordinates. It can convert coordinates for a point from one system to another and also calculate distance between points.
时间：2013-02-12 14:40