ThinkPHP实现经纬度范围查询

经纬度范围获取

 1     /**
 2      * Desc: 根据经纬度，半径范围获取附近
 3      * User: JamesLiu
 4      * Date: 2019/5/13
 5      * Time: 15:38
 6      * @param $longitude 经度
 7      * @param $latitude 纬度
 8      * @param $raidus 半径范围(单位：米)
 9      * @return array
10      */
11     public function getAround($longitude, $latitude, $raidus)
12     {
13         $PI = 3.14159265;
14         $degree = (24901 * 1609) / 360.0;
15         $dpmLat = 1 / $degree;
16         $radiusLat = $dpmLat * $raidus;
17         $minLat = $latitude - $radiusLat;
18         $maxLat = $latitude + $radiusLat;
19         $mpdLng = $degree * cos($latitude * ($PI / 180));
20         $dpmLng = 1 / $mpdLng;
21         $radiusLng = $dpmLng * $raidus;
22         $minLng = $longitude - $radiusLng;
23         $maxLng = $longitude + $radiusLng;
24         return array('minLng' => $minLng, 'maxLng' => $maxLng, 'minLat' => $minLat, 'maxLat' => $maxLat);
25     }

经纬度距离组装成sql

1 $array = $this->getAround(115.826646, 28.718022, 2000);
2  $condition['longitude'] = array(array('EGT', $array['minLng']), array('ELT', $array['maxLng']), 'and');//(`longitude` >= minLng) AND (`longitude` <= maxLng)
3  $condition['latitude'] = array(array('EGT', $array['minLat']), array('ELT', $array['maxLat']), 'and');//(`latitude` >= minLat) AND (`latitude` <=maxLat)