Example of mutual conversion between Tencent Map and Baidu Map using PHP

The main content of this article is about using PHP to realize the mutual conversion of Tencent Map and Baidu Map (with code). It has certain reference value. Interested friends must take a good look. oh!

/**
* 百度地图---->腾讯地图
* @param double $lat 纬度
* @param double $lng 经度
* @return array();
*/
function Convert_BD09_To_GCJ02($lat,$lng){
        $x_pi = 3.14159265358979324 * 3000.0 / 180.0;
        $x = $lng - 0.0065;
        $y = $lat - 0.006;
        $z = sqrt($x * $x + $y * $y) - 0.00002 * sin($y * $x_pi);
        $theta = atan2($y, $x) - 0.000003 * cos($x * $x_pi);
        $lng = $z * cos($theta);
        $lat = $z * sin($theta);
        return array('lng'=>$lng,'lat'=>$lat);
}

/**
* 腾讯地图---->百度地图
* @param double $lat 纬度
* @param double $lng 经度
*/
function Convert_GCJ02_To_BD09($lat,$lng){
        $x_pi = 3.14159265358979324 * 3000.0 / 180.0;
        $x = $lng;
        $y = $lat;
        $z =sqrt($x * $x + $y * $y) + 0.00002 * sin($y * $x_pi);
        $theta = atan2($y, $x) + 0.000003 * cos($x * $x_pi);
        $lng = $z * cos($theta) + 0.0065;
        $lat = $z * sin($theta) + 0.006;
        return array('lng'=>$lng,'lat'=>$lat);
}

Related tutorials: PHP video tutorial

The above is the detailed content of Example of mutual conversion between Tencent Map and Baidu Map using PHP. For more information, please follow other related articles on the PHP Chinese website!