Backend Development
PHP Tutorial
Use PHP to obtain countries, provinces, cities, and surrounding data based on geographical coordinates
Use PHP to obtain countries, provinces, cities, and surrounding data based on geographical coordinates
Function: When the App obtains the user's geographical coordinates, it can know the country, province, city, and surrounding data of the user based on the coordinates.
Principle: Based on Baidu Geocoding API implementation, you need to register as a Baidu developer first, and then apply for Baidu AK (key)
Geocoding.class.php
<?php/**
* 根据地理坐标获取国家、省份、城市，及周边数据类(利用百度Geocoding API实现)
* 百度密钥获取方法：http://lbsyun.baidu.com/apiconsole/key?application=key（需要先注册百度开发者账号）
* Date: 2015-07-30
* Author: fdipzone
* Ver: 1.0
*
* Func:
* Public getAddressComponent 根据地址获取国家、省份、城市及周边数据
* Private toCurl 使用curl调用百度Geocoding API
*/class Geocoding {
// 百度Geocoding API
const API = 'http://api.map.baidu.com/geocoder/v2/'; // 不显示周边数据
const NO_POIS = 0; // 显示周边数据
const POIS = 1;
/**
* 根据地址获取国家、省份、城市及周边数据
* @param String $ak 百度ak(密钥)
* @param Decimal $longitude 经度
* @param Decimal $latitude 纬度
* @param Int $pois 是否显示周边数据
* @return Array
*/
public static function getAddressComponent($ak, $longitude, $latitude, $pois=self::NO_POIS){
$param = array( 'ak' => $ak, 'location' => implode(',', array($latitude, $longitude)), 'pois' => $pois, 'output' => 'json'
); // 请求百度api
$response = self::toCurl(self::API, $param); $result = array(); if($response){ $result = json_decode($response, true);
} return $result;
} /**
* 使用curl调用百度Geocoding API
* @param String $url 请求的地址
* @param Array $param 请求的参数
* @return JSON
*/
private static function toCurl($url, $param=array()){
$ch = curl_init(); if(substr($url,0,5)=='https'){
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 跳过证书检查
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, true); // 从证书中检查SSL加密算法是否存在
}
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($param)); $response = curl_exec($ch); if($error=curl_error($ch)){ return false;
}
curl_close($ch); return $response;
}
}?>
##demo.php
<?phprequire "Geocoding.class.php";$ak = '这里填写你的百度AK';$longitude = 113.327782;$latitude = 23.137202;$result = Geocoding::getAddressComponent($ak, $longitude, $latitude, Geocoding::NO_POIS);echo '<pre class="brush:php;toolbar:false">'; print_r($result);echo '';?>
Example returns:
Array(
[status] => 0
[result] => Array
(
[location] => Array
(
[lng] => 113.32778195925
[lat] => 23.137201991056
)
[formatted_address] => 广东省广州市天河区体育西横街35号
[business] => 天河城,体育中心,沙河
[addressComponent] => Array
(
[city] => 广州市
[country] => 中国
[direction] => 附近
[distance] => 14
[district] => 天河区
[province] => 广东省
[street] => 体育西横街
[street_number] => 35号
[country_code] => 0
)
[poiRegions] => Array
(
)
[sematic_description] => 红盾大厦北58米
[cityCode] => 257
)
)Related methods on how to use the glob method to traverse all files in a folder
About php floating point numbers Explanation of the comparison method
Explanation of the method of exporting query results to csv through mysql
The above is the detailed content of Use PHP to obtain countries, provinces, cities, and surrounding data based on geographical coordinates. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1668
14
1428
52
1329
25
1273
29
1256
24
PHP: A Key Language for Web Development
Apr 13, 2025 am 12:08 AM
PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7
PHP and Python: Comparing Two Popular Programming Languages
Apr 14, 2025 am 12:13 AM
PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.
PHP vs. Python: Understanding the Differences
Apr 11, 2025 am 12:15 AM
PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.
PHP in Action: Real-World Examples and Applications
Apr 14, 2025 am 12:19 AM
PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.
The Enduring Relevance of PHP: Is It Still Alive?
Apr 14, 2025 am 12:12 AM
PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.
PHP and Python: Different Paradigms Explained
Apr 18, 2025 am 12:26 AM
PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.
PHP vs. Other Languages: A Comparison
Apr 13, 2025 am 12:19 AM
PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.
PHP and Python: Code Examples and Comparison
Apr 15, 2025 am 12:07 AM
PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.
