微信获取用户信息

//login.php
<?php
$appid='w888888888888888888888888888888888888888888888888';
//urlencode将字符串转为url
$redirect_uri = urlencode ( 'http://www.88888888888888888888888888/getUserInfo.php' );
$url ="https://open.weixin.qq.com/connect/oauth2/authorize?appid=$appid&redirect_uri=$redirect_uri&response_type=code&scope=snsapi_userinfo&state=1#wechat_redirect";
header("Location:".$url);

/getUserInfo.php
<?php
header("content-type:text/html;charset=utf-8");
$code = $_GET["code"];

$userinfo = getUserInfo($code);

function getUserInfo($code)
{
    $appid = "888888888888888888888888888888";
    $appsecret = "88888888888888888888888888888";//appid和appsecret在这里隐去，在源代码中是正确的
    $access_token = "";

//Get access_token
    $access_token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=$appid&secret=$appsecret&code=$code&grant_type=authorization_code";
    $access_token_json = https_request($access_token_url);
    $access_token_array = json_decode($access_token_json,true);
    $access_token = $access_token_array['access_token'];
    $openid = $access_token_array['openid'];

//Get user info
    $userinfo_url = "https://api.weixin.qq.com/sns/userinfo?access_token=$access_token&openid=$openid";
    $userinfo_json = https_request($userinfo_url);
    $userinfo_array = json_decode($userinfo_json,ture);
    $getJson =  $userinfo_json;
    print_r($getJson);



}

function https_request($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;
}