Geohash根据经纬度计算距离.该怎么处理
Geohash根据经纬度计算距离.
谁用过geohash.class.php这个查找附近人的类的?
我想问下表Geohash的精确的位数,跟距离有什么关系？我只想在数据库中搜出里我最近的一个坐标点，该如何实现？
------解决方案--------------------
失之毫厘，谬之千里
距离越大偏差越大
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