php腾讯地图逆地址解析(签名校验)

官方文档:https://lbs.qq.com/service/webService/webServiceGuide/webServiceGcoder

这里使用签名校验的方式,可在腾讯地图控制台KEY管理里查看

/**
 * [get_geocoder_location 腾讯地图逆地址解析]
 * @param  [float] $lng [description]
 * @param  [float] $lat [description]
 * @return [array]      [description]
 * @document https://lbs.qq.com/service/webService/webServiceGuide/webServiceGcoder
 */
function get_geocoder_location($lng, $lat) {
    $sign_key = 'XXXXXXXXX'; //签名校验的KEY
    $map_ak = 'AK';
    $sign = md5('/ws/geocoder/v1?key='.$map_ak.'&location='.$lat.','.$lng.$sign_key);

    $url = 'https://apis.map.qq.com/ws/geocoder/v1?key='.$map_ak.'&location='.$lat.','.$lng.'&sig='.$sign;

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_HTTPGET, true);
    curl_setopt($ch, CURLOPT_REFERER, $url);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36');
    $content = curl_exec($ch);
    curl_close($ch);

    $result = [];
    if($content) {
        $result = json_decode($content, true);
    }

    return $result;
}