PHP 微信公众号开发 - 获取用户信息

<?php
// 字符编码
header("Content-Type:text/html; charset=utf-8"); // 微信接口类
class WeChat{
private static $appid;
private static $appsecret; function __construct(){
self::$appid = ''; // 开发者ID(AppID)
self::$appsecret = ''; // 开发者密码(AppSecret)
} // 微信授权地址
public static function getAuthorizeUrl($url){
$url_link = urlencode($url);
return "https://open.weixin.qq.com/connect/oauth2/authorize?appid=" . self::$appid . "&redirect_uri={$url_link}&response_type=code&scope=snsapi_base&state=1#wechat_redirect";
} // 获取TOKEN
public static function getToken(){
$urla = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" . self::$appid . "&secret=" . self::$appsecret;
$outputa = self::curlGet($urla);
$result = json_decode($outputa, true);
return $result['access_token'];
} /**
* getUserInfo 获取用户信息
* @param string $code 微信授权code
* @param string $weiwei_token Token
* @return array
*/
public static function getUserInfo($code, $weiwei_token){
$access_token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=" . self::$appid . "&secret=" . self::$appsecret . "&code={$code}&grant_type=authorization_code";
$access_token_json = self::curlGet($access_token_url);
$access_token_array = json_decode($access_token_json, true);
$openid = $access_token_array['openid'];
$new_access_token = $weiwei_token; //全局access token获得用户基本信息
$userinfo_url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token={$new_access_token}&openid={$openid}";
$userinfo_json = self::curlGet($userinfo_url);
$userinfo_array = json_decode($userinfo_json, true);
return $userinfo_array;
} /**
* addLog 日志记录
* @param string $log_content 日志内容
*/
public static function addLog($log_content = ''){
$data = "";
$data .= "DATE: [ " . date('Y-m-d H:i:s') . " ]\r\n";
$data .= "INFO: " . $log_content . "\r\n\r\n";
file_put_contents('/wechat.log', $data, FILE_APPEND);
} /**
* 发送get请求
* @param string $url 链接
* @return bool|mixed
*/
private static function curlGet($url){
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($curl);
if(curl_errno($curl)){
return 'ERROR ' . curl_error($curl);
}
curl_close($curl);
return $output;
} /**
* 发送post请求
* @param string $url 链接
* @param string $data 数据
* @return bool|mixed
*/
private static function curlPost($url, $data = null){
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
if(!empty($data)){
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
}
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($curl);
curl_close($curl);
return $output;
}
} /**
* get_page_url 获取完整URL
* @return url
*/
function get_page_url($type = 0){
$pageURL = 'http';
if($_SERVER["HTTPS"] == 'on'){
$pageURL .= 's';
}
$pageURL .= '://';
if($type == 0){
$pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
}else{
$pageURL .= $_SERVER["SERVER_NAME"];
}
return $pageURL;
} // 获取用户openid // 微信接口类
$WeChat = new WeChat();
if(empty($_GET['code']) || !isset($_GET['code'])){
// 通过授权获取code
$url = get_page_url();
$authorize_url = $WeChat->getAuthorizeUrl($url);
header("Location:{$authorize_url}"); // 重定向浏览器
exit();
}else{
// 获取微信用户信息
$code = $_GET['code'];
$weiwei_token = $WeChat->getToken(); // 获取微信token
$user_info = $WeChat->getUserInfo($code, $weiwei_token);
print_r($user_info); // 用户微信信息
print_r($user_info['openid']); // 用户openid
}