89 lines
2.2 KiB
PHP
89 lines
2.2 KiB
PHP
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<?php
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namespace app\common\model;
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use think\Cache;
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use think\Model;
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/**
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* 地区数据模型
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*/
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class Area extends Model
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{
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/**
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* 根据经纬度获取当前地区信息
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*
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* @param string $lng 经度
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* @param string $lat 纬度
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* @return Area 城市信息
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*/
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public static function getAreaFromLngLat($lng, $lat, $level = 3)
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{
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$namearr = [1 => 'geo:province', 2 => 'geo:city', 3 => 'geo:district'];
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$rangearr = [1 => 15000, 2 => 1000, 3 => 200];
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$geoname = $namearr[$level] ?? $namearr[3];
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$georange = $rangearr[$level] ?? $rangearr[3];
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// 读取范围内的ID
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$redis = Cache::store('redis')->handler();
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$georadiuslist = [];
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if (method_exists($redis, 'georadius')) {
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$georadiuslist = $redis->georadius($geoname, $lng, $lat, $georange, 'km', ['WITHDIST', 'COUNT' => 5, 'ASC']);
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}
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if ($georadiuslist) {
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list($id, $distance) = $georadiuslist[0];
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}
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$id = isset($id) && $id ? $id : 3;
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return self::get($id);
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}
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/**
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* 根据经纬度获取省份
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*
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* @param string $lng 经度
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* @param string $lat 纬度
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* @return Area
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*/
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public static function getProvinceFromLngLat($lng, $lat)
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{
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$provincedata = null;
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$citydata = self::getCityFromLngLat($lng, $lat);
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if ($citydata) {
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$provincedata = self::get($citydata['pid']);
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}
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return $provincedata;
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}
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/**
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* 根据经纬度获取城市
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*
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* @param string $lng 经度
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* @param string $lat 纬度
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* @return Area
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*/
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public static function getCityFromLngLat($lng, $lat)
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{
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$citydata = null;
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$districtdata = self::getDistrictFromLngLat($lng, $lat);
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if ($districtdata) {
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$citydata = self::get($districtdata['pid']);
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}
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return $citydata;
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}
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/**
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* 根据经纬度获取地区
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*
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* @param string $lng 经度
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* @param string $lat 纬度
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* @return Area
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*/
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public static function getDistrictFromLngLat($lng, $lat)
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{
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$districtdata = self::getAreaFromLngLat($lng, $lat, 3);
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return $districtdata;
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}
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}
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