lvht/geohash

geohash like python-geohash

GeoHash

Simple php geohash class like python-geohash., _(*1)

Getting Started

Install

composer require lvht/geohash, _(*2)

System Requirements

You need PHP >= 5.4.0., _(*3)

Usage

Encode a coordinate:, _(*4)

use Lvht\GeoHash;
echo GeoHash::encode(117.031689,36.65396);

The result is wwe0x0euu12., _(*5)

The default precision is 0.00001 which can be changed by the third parameter of encode method., _(*6)

Find the neighbors for a given geohash:, _(*7)

use Lvht\GeoHash;
var_dump(GeoHash::expand('wwe0x0'));

and the result is:, _(*8)

array(8) {
  [0] =>
  string(11) "wwe0wc7zzzz"
  [1] =>
  string(11) "wwe0x17zzzz"
  [2] =>
  string(11) "wwe0x37zzzz"
  [3] =>
  string(11) "wwe0wb7zzzz"
  [4] =>
  string(11) "wwe0x27zzzz"
  [5] =>
  string(11) "wwe0qz7zzzz"
  [6] =>
  string(11) "wwe0rp7zzzz"
  [7] =>
  string(11) "wwe0rr7zzzz"
}

Decode a geohash string:, _(*9)

Use Lvht\GeoHash;
var_dump(GeoHash::decode('wwe0x0'));

and the result is:, _(*10)

array(4) {
  [0] =>
  double(117.0263671875)    # min longitude
  [1] =>
  double(117.03735351562)   # max longitude
  [2] =>
  double(36.650390625)      # min latitude
  [3] =>
  double(36.655883789062)   # max latitude
}