69 lines
1.2 KiB
Markdown
69 lines
1.2 KiB
Markdown
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# GeoHash
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Simple php geohash class like python-geohash.
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## Getting Started
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### Install
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composer require lvht/geohash
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### System Requirements
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You need **PHP >= 5.4.0**.
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### Usage
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Encode a coordinate:
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use Lvht\GeoHash;
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echo GeoHash::encode(117.031689,36.65396);
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The result is wwe0x0euu12.
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The default precision is 0.00001 which can be changed by the third parameter
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of encode method.
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Find the neighbors for a given geohash:
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use Lvht\GeoHash;
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var_dump(GeoHash::expand('wwe0x0'));
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and the result is:
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array(8) {
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[0] =>
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string(11) "wwe0wc7zzzz"
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[1] =>
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string(11) "wwe0x17zzzz"
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[2] =>
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string(11) "wwe0x37zzzz"
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[3] =>
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string(11) "wwe0wb7zzzz"
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[4] =>
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string(11) "wwe0x27zzzz"
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[5] =>
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string(11) "wwe0qz7zzzz"
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[6] =>
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string(11) "wwe0rp7zzzz"
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[7] =>
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string(11) "wwe0rr7zzzz"
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}
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Decode a geohash string:
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Use Lvht\GeoHash;
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var_dump(GeoHash::decode('wwe0x0'));
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and the result is:
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array(4) {
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[0] =>
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double(117.0263671875) # min longitude
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[1] =>
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double(117.03735351562) # max longitude
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[2] =>
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double(36.650390625) # min latitude
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[3] =>
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double(36.655883789062) # max latitude
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}
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