为什么要做这个，原因是，识别图片的时候，有点查不出来，只是一个完整的地址 当然也可以组合成不同的结果 ```php function checkPCA($address) { preg_match('/(.*?(省|自治区|北京市|天津市))/', $address, $matches); if (count($matches) > 1) { $province = $matches[count($matches) - 2]; $address = str_replace($province, '', $address); } preg_match('/(.*?(市|自治州|地区|区划|县))/', $address, $matches); if (count($matches) > 1) { $city = $matches[count($matches) - 2]; $address = str_replace($city, '', $address); } preg_match('/(.*?(区|县|镇|乡|街道))/', $address, $matches); if (count($matches) > 1) { $area = $matches[count($matches) - 2]; $address = str_replace($area, '', $address); } return [ 'province' => isset($province) ? $province : '', 'city' => isset($city) ? $city : '', 'area' => isset($area) ? $area : '', ]; } ```