<?php
if(isset($_GET['code'])){
    $code = $_GET['code'];
    $userInfo = getUserInfo($code);
    echo $userInfo;
}
else{
    echo "Error!";
}

function getUserInfo($code){
    $appid = "wx04d2578db7e1b736";
    $appsecret = "43b9557d223737d01ababb39a4b4b14d";
    $accessToken = "";
    
    //根据code获取token
    $tokenURL = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=$appid&secret=$appsecret&code=$code&grant_type=authorization_code";
    $tokenJson = https_request($tokenURL);
    $tokenArray = json_decode($tokenJson,true);
    $accssToken = $tokenArray['access_token'];
    $openid = $tokenArray['openid'];
    
    
    //拉取用户信息
    $userInfoURL = "https://api.weixin.qq.com/sns/userinfo?access_token=$accssToken&openid=$openid";
    $userInfoJson = https_request($userInfoURL);
    $userInfoArray = json_decode($userInfoJson,true);
        
    return $userInfoJson;
}

function https_request($url){
    
    //return $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);
    $data = curl_exec($curl);
    if(curl_errno($curl)){
        return 'ERROR'.curl_error($curl);
    }
    curl_close($curl);
    return $data;
}
?>