afac67a101
正式版不能直接请求地图域名时，由后端转发逆地理。保存区划时带上省的 id，避免同名直辖县挂错省份。 Co-authored-by: Cursor <cursoragent@cursor.com>
252 行
9.2 KiB
PHP
252 行
9.2 KiB
PHP
<?php
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namespace app\common\library;
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use addons\shopro\model\Area;
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/**
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* 天地图逆地理编码。
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* 微信选点返回 GCJ-02，天地图使用 CGCS2000，请求前先转换。
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*/
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class Tianditu
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{
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public static function reverse($longitude, $latitude)
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{
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$key = self::key();
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if ($key === '') {
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throw new \Exception('未配置天地图密钥');
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}
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list($lon, $lat) = self::gcj02ToWgs84((float)$longitude, (float)$latitude);
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$result = self::request($lon, $lat, $key);
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$component = isset($result['addressComponent']) && is_array($result['addressComponent'])
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? $result['addressComponent']
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: [];
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$area = self::matchArea($component);
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$address = self::detailAddress($result, $component);
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$province = $area['province'];
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$city = $area['city'] === $province ? '' : $area['city'];
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return [
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'area_text' => $area['province'] . '-' . $area['city'] . '-' . $area['district'],
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'address' => $address,
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'formatted_address' => $province . $city . $area['district'] . $address,
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];
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}
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protected static function key()
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{
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$key = function_exists('config') ? config('tianditu.key') : '';
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if (!$key) {
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$file = dirname(__DIR__, 2) . '/extra/tianditu.php';
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$config = is_file($file) ? include $file : [];
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$key = is_array($config) && !empty($config['key']) ? $config['key'] : '';
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}
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return trim((string)$key);
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}
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protected static function request($longitude, $latitude, $key)
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{
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$postStr = json_encode([
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'lon' => round($longitude, 6),
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'lat' => round($latitude, 6),
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'ver' => 1,
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], JSON_UNESCAPED_UNICODE);
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$url = 'https://api.tianditu.gov.cn/geocoder?postStr=' . rawurlencode($postStr) . '&type=geocode&tk=' . rawurlencode($key);
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$ch = curl_init($url);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
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curl_setopt($ch, CURLOPT_TIMEOUT, 8);
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
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curl_setopt($ch, CURLOPT_USERAGENT, 'chufang-server/1.0');
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$body = curl_exec($ch);
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$errno = curl_errno($ch);
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curl_close($ch);
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if ($errno || $body === false || $body === '') {
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throw new \Exception('地址解析失败，请稍后重试');
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}
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$json = json_decode($body, true);
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if (!is_array($json) || !isset($json['status']) || (string)$json['status'] !== '0' || empty($json['result']) || !is_array($json['result'])) {
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$message = is_array($json) && !empty($json['msg']) ? $json['msg'] : '地址解析失败';
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throw new \Exception($message);
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}
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return $json['result'];
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}
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protected static function matchArea(array $component)
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{
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$district = self::findDistrict($component);
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if (!$district) {
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throw new \Exception('未能匹配区县，请手动选择所在地区');
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}
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$city = Area::where('id', $district['pid'])->find();
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$province = $city ? Area::where('id', $city['pid'])->find() : null;
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if (!$city || !$province || (int)$city['level'] !== 2 || (int)$province['level'] !== 1) {
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throw new \Exception('未能匹配省市区，请手动选择所在地区');
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}
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return [
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'province' => $province['name'],
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'city' => $city['name'],
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'district' => $district['name'],
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];
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}
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protected static function findDistrict(array $component)
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{
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$countyId = self::adminCode(isset($component['county_code']) ? $component['county_code'] : '');
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if ($countyId) {
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$district = Area::where('id', $countyId)->where('level', 3)->find();
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if ($district) {
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return $district;
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}
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}
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$county = trim(isset($component['county']) ? $component['county'] : '');
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if ($county === '') {
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return null;
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}
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$cityId = self::adminCode(isset($component['city_code']) ? $component['city_code'] : '');
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$query = Area::where('name', $county)->where('level', 3);
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if ($cityId) {
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$query->where('pid', $cityId);
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}
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return $query->find();
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}
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protected static function detailAddress(array $result, array $component)
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{
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$segments = [];
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$adminNames = [];
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foreach (['province', 'city', 'county'] as $field) {
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$name = trim(isset($component[$field]) ? (string)$component[$field] : '');
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if ($name !== '') {
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$adminNames[] = $name;
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}
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}
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foreach (['town', 'road', 'address', 'poi'] as $field) {
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$segment = trim(isset($component[$field]) ? (string)$component[$field] : '');
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$segment = self::stripAdmin($segment, $adminNames);
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if ($segment === '' || self::isRelative($segment)) {
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continue;
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}
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$replaced = false;
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foreach ($segments as $index => $exist) {
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if (mb_strpos($segment, $exist) !== false) {
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$segments[$index] = $segment;
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$replaced = true;
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break;
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}
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if (mb_strpos($exist, $segment) !== false) {
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$replaced = true;
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break;
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}
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}
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if (!$replaced) {
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$segments[] = $segment;
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}
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}
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if ($segments) {
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return implode('', $segments);
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}
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$detail = isset($result['formatted_address']) ? $result['formatted_address'] : '';
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foreach (['province', 'city', 'county'] as $field) {
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$part = trim(isset($component[$field]) ? (string)$component[$field] : '');
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if ($part !== '') {
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$detail = preg_replace('/' . preg_quote($part, '/') . '/u', '', $detail, 1);
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}
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}
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return trim($detail);
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}
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protected static function stripAdmin($segment, array $adminNames)
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{
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foreach ($adminNames as $name) {
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if ($name !== '' && mb_strpos($segment, $name) !== false) {
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$segment = str_replace($name, '', $segment);
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}
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$short = preg_replace('/(省|市|自治区|特别行政区)$/u', '', $name);
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if ($short === '' || $short === $name || mb_strlen($short) < 2) {
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continue;
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}
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if ($segment === $short) {
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return '';
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}
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$suffixLength = mb_strlen($short);
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if (mb_strlen($segment) > $suffixLength && mb_substr($segment, -$suffixLength) === $short) {
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$segment = mb_substr($segment, 0, mb_strlen($segment) - $suffixLength);
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}
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}
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return trim($segment);
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}
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protected static function isRelative($text)
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{
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return (bool)preg_match('/[东西南北].{0,4}约?\d+米/u', $text);
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}
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protected static function adminCode($code)
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{
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$digits = preg_replace('/\D/', '', (string)$code);
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if (strlen($digits) < 6) {
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return 0;
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}
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return (int)substr($digits, -6);
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}
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protected static function gcj02ToWgs84($longitude, $latitude)
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{
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if (self::outOfChina($longitude, $latitude)) {
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return [$longitude, $latitude];
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}
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$offset = self::offset($longitude, $latitude);
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return [$longitude * 2 - $offset[0], $latitude * 2 - $offset[1]];
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}
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protected static function offset($longitude, $latitude)
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{
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$a = 6378245.0;
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$ee = 0.00669342162296594323;
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$dlng = self::transformLng($longitude - 105.0, $latitude - 35.0);
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$dlat = self::transformLat($longitude - 105.0, $latitude - 35.0);
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$radLat = $latitude / 180.0 * M_PI;
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$magic = sin($radLat);
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$magic = 1 - $ee * $magic * $magic;
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$sqrtMagic = sqrt($magic);
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$dlat = ($dlat * 180.0) / (($a * (1 - $ee)) / ($magic * $sqrtMagic) * M_PI);
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$dlng = ($dlng * 180.0) / ($a / $sqrtMagic * cos($radLat) * M_PI);
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return [$longitude + $dlng, $latitude + $dlat];
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}
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protected static function outOfChina($longitude, $latitude)
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{
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return $longitude < 72.004 || $longitude > 137.8347 || $latitude < 0.8293 || $latitude > 55.8271;
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}
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protected static function transformLat($lng, $lat)
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{
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$ret = -100.0 + 2.0 * $lng + 3.0 * $lat + 0.2 * $lat * $lat + 0.1 * $lng * $lat + 0.2 * sqrt(abs($lng));
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$ret += (20.0 * sin(6.0 * $lng * M_PI) + 20.0 * sin(2.0 * $lng * M_PI)) * 2.0 / 3.0;
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$ret += (20.0 * sin($lat * M_PI) + 40.0 * sin($lat / 3.0 * M_PI)) * 2.0 / 3.0;
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$ret += (160.0 * sin($lat / 12.0 * M_PI) + 320 * sin($lat * M_PI / 30.0)) * 2.0 / 3.0;
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return $ret;
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}
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protected static function transformLng($lng, $lat)
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{
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$ret = 300.0 + $lng + 2.0 * $lat + 0.1 * $lng * $lng + 0.1 * $lng * $lat + 0.1 * sqrt(abs($lng));
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$ret += (20.0 * sin(6.0 * $lng * M_PI) + 20.0 * sin(2.0 * $lng * M_PI)) * 2.0 / 3.0;
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$ret += (20.0 * sin($lng * M_PI) + 40.0 * sin($lng / 3.0 * M_PI)) * 2.0 / 3.0;
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$ret += (150.0 * sin($lng / 12.0 * M_PI) + 300.0 * sin($lng / 30.0 * M_PI)) * 2.0 / 3.0;
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return $ret;
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}
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}
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