README

基于GeoHash算法的PHP类库实现。

详细信息请参阅博客（中文）

https://usblog.crazylaw.cn/index.php/archives/324/

用法

提供三种API方法。

around($lng, $lat, $interceptLength = 0) 将经纬度的9个区域的HashCode进行转换。
encode($lng, $lat, $interceptLength = 0) 将HashCode转换为指定的经纬度。
distance($centerLng, $centerLat, $pointLng, $pointLat, $lenType = 1, $decimal = 2) 计算两个经纬度之间的距离。

示例：

require_once 'vendor/autoload.php';

// The base hashcode length must be a multiple of 5, otherwise it will automatically be filled to a multiple of 5.
// The longer the base length of hashcode is, the more options are available to intercept, and the longer it is recommended. 10 is usually enough.
$hashCodeLength = 10;

$geohash = new ccinn\GeoHash($hashCodeLength);

// Search nearby 20 meters
$interceptLength = 8;
$around          = $geohash->around(113.314748, 23.125851, $interceptLength);

var_dump($around, $point = $geohash->encode(113.314851, 23.125839, $interceptLength));

if (in_array($point, $around)) {
    echo 'in_around' . PHP_EOL;
} else {
    echo 'not_in_around' . PHP_EOL;
}

var_dump('distance:' . $geohash->distance(113.314748, 23.125851, 113.314851, 23.125839) . 'm');

ccinn / geohash

维护者

详细信息

README

用法