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xianyunyh/geohash
=================

xianyunyehe/geohash

1.0.0(8y ago)016BSDPHPPHP ^5.3.3 || ^7.0

Since May 21Pushed 8y ago1 watchersCompare

[ Source](https://github.com/xianyunyh/geohash)[ Packagist](https://packagist.org/packages/xianyunyh/geohash)[ RSS](/packages/xianyunyh-geohash/feed)WikiDiscussions master Synced 2d ago

READMEChangelog (1)DependenciesVersions (2)Used By (0)

geohash
=======

[](#geohash)

这年头和LBS相关的应用越来越火. 从foursquare的热闹程度就可见一般, 更不用说微信、陌陌了 (什么, 没听过 foursquare... 哥们, 你 out 了). 和 LBS有关的应用一般都包括一些共同的操作, 最常见的一个, 就是找附近的东东（餐馆, 商店, 妞....）. 所以, 这里就抛出了一个问题, 怎样才能在大量经纬度数据中检索出附近的点呢?

geohash能做到 [@一个开发者](http://weibo.com/smcz)

[![](https://camo.githubusercontent.com/3d7ad1313757eec59c1a1fa89f312709ca84d514c002bdb3e7773a2915f91256/687474703a2f2f736572766963652e742e73696e612e636f6d2e636e2f7769646765742f716d642f313635363336303932352f30323738316261342f342e706e67)](http://weibo.com/smcz)

[![paypaldonate](https://camo.githubusercontent.com/6ad25dc60187e9efd9ea1737df0dfce649e74c4d2e836eae6800a012d227d1f0/68747470733a2f2f7777772e70617970616c6f626a656374732e636f6d2f656e5f47422f692f62746e2f62746e5f646f6e6174655f534d2e676966)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=VW7YCWNMQ7ZXY)

[![](https://camo.githubusercontent.com/9478315509b490897e10ffd77e51518d489fb679169de8689820f1234032f98b/687474703a2f2f696d6167652e73696e6173746f726167652e636f6d2f646f6e6174652e706e67)](https://camo.githubusercontent.com/9478315509b490897e10ffd77e51518d489fb679169de8689820f1234032f98b/687474703a2f2f696d6167652e73696e6173746f726167652e636f6d2f646f6e6174652e706e67)

### Requirements

[](#requirements)

- PHP >= 4

### Usage

[](#usage)

- 例如: 用iPhone/android手机定位得到理想国际大厦的经纬度: 39.98123848, 116.30683690 然后查找附近的妞 [![](https://camo.githubusercontent.com/2198bc2890d0256e697db9d0219d654b1d0cb4ba79b5c854148e103f99df66a0/687474703a2f2f7777772e73696e61696d672e636e2f75632f6d7973686f772f626c6f672f6d6973632f6769662f455f5f5f36373135454e3030534947472e676966)](https://camo.githubusercontent.com/2198bc2890d0256e697db9d0219d654b1d0cb4ba79b5c854148e103f99df66a0/687474703a2f2f7777772e73696e61696d672e636e2f75632f6d7973686f772f626c6f672f6d6973632f6769662f455f5f5f36373135454e3030534947472e676966)

```
require_once('geohash.class.php');
$geohash = new Geohash;
//得到这点的hash值
$hash = $geohash->encode(39.98123848, 116.30683690);
//取前缀，前缀约长范围越小
$prefix = substr($hash, 0, 6);
//取出相邻八个区域
$neighbors = $geohash->neighbors($prefix);
array_push($neighbors, $prefix);

print_r($neighbors);
```

- 得到9个geohash值

```
//得到9个geohash值

Array
(
    [top] => wx4eqx
    [bottom] => wx4eqt
    [right] => wx4eqy
    [left] => wx4eqq
    [topleft] => wx4eqr
    [topright] => wx4eqz
    [bottomright] => wx4eqv
    [bottomleft] => wx4eqm
    [0] => wx4eqw
)
```

- 范围如图:

[![](https://camo.githubusercontent.com/3c3cf221d824f7e23f923eecca66b7827e75b465365d5147038e2775d66ba835/687474703a2f2f7331352e73696e61696d672e636e2f6f7269676e616c2f36326261306664647461623362383338316365386526363930)](https://camo.githubusercontent.com/3c3cf221d824f7e23f923eecca66b7827e75b465365d5147038e2775d66ba835/687474703a2f2f7331352e73696e61696d672e636e2f6f7269676e616c2f36326261306664647461623362383338316365386526363930)

- 用sql语句查询

```
SELECT * FROM xy WHERE geohash LIKE 'wx4eqw%';
SELECT * FROM xy WHERE geohash LIKE 'wx4eqx%';
SELECT * FROM xy WHERE geohash LIKE 'wx4eqt%';
SELECT * FROM xy WHERE geohash LIKE 'wx4eqy%';
SELECT * FROM xy WHERE geohash LIKE 'wx4eqq%';
SELECT * FROM xy WHERE geohash LIKE 'wx4eqr%';
SELECT * FROM xy WHERE geohash LIKE 'wx4eqz%';
SELECT * FROM xy WHERE geohash LIKE 'wx4eqv%';
SELECT * FROM xy WHERE geohash LIKE 'wx4eqm%';
```

- 看一下是否用上索引 (一共有50多万行测试数据):

索引:

[![](https://camo.githubusercontent.com/11efd9581af49e4bcab6d198df2f9132755b284273af5e779e9db5500e541d37/687474703a2f2f7331352e73696e61696d672e636e2f6f7269676e616c2f36326261306664647461623362383436336639636526363930)](https://camo.githubusercontent.com/11efd9581af49e4bcab6d198df2f9132755b284273af5e779e9db5500e541d37/687474703a2f2f7331352e73696e61696d672e636e2f6f7269676e616c2f36326261306664647461623362383436336639636526363930)

数据:

[![](https://camo.githubusercontent.com/ba7bb34ded299e990d8098bc9c99b6ba6046d991242f5a10881d3dd40bc5a1f8/687474703a2f2f73312e73696e61696d672e636e2f6f7269676e616c2f36326261306664647461623362383464366332353026363930)](https://camo.githubusercontent.com/ba7bb34ded299e990d8098bc9c99b6ba6046d991242f5a10881d3dd40bc5a1f8/687474703a2f2f73312e73696e61696d672e636e2f6f7269676e616c2f36326261306664647461623362383464366332353026363930)

```
EXPLAIN SELECT * FROM xy WHERE geohash LIKE 'wx4eqw%';
```

[![](https://camo.githubusercontent.com/0cce60e83a3032193ff8d8f776f7ec3e3dfbae388a2fc44618da9c3b8d1eee02/687474703a2f2f73382e73696e61696d672e636e2f6f7269676e616c2f36326261306664647461623362383663613930303726363930)](https://camo.githubusercontent.com/0cce60e83a3032193ff8d8f776f7ec3e3dfbae388a2fc44618da9c3b8d1eee02/687474703a2f2f73382e73696e61696d672e636e2f6f7269676e616c2f36326261306664647461623362383663613930303726363930)

其他资料：

- geohash演示:
- wiki:
- 原理:

###  Health Score

26

—

LowBetter than 43% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity6

Limited adoption so far

Community9

Small or concentrated contributor base

Maturity58

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 82.4% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Unknown

Total

1

Last Release

3280d ago

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/3776329?v=4)[tianlei](/maintainers/tianlei)[@tianlei](https://github.com/tianlei)

---

Top Contributors

[![CloudSide](https://avatars.githubusercontent.com/u/1386799?v=4)](https://github.com/CloudSide "CloudSide (14 commits)")[![xianyunyh](https://avatars.githubusercontent.com/u/7820848?v=4)](https://github.com/xianyunyh "xianyunyh (3 commits)")

### Embed Badge

![Health badge](/badges/xianyunyh-geohash/health.svg)

```
[![Health](https://phpackages.com/badges/xianyunyh-geohash/health.svg)](https://phpackages.com/packages/xianyunyh-geohash)
```

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