php手机端怎么获取微信openid
发布网友
发布时间：2022-04-23 04:30
共3个回答
懂视网
时间：2022-05-11 09:24
今天我要说的是第二种网页授权获取openid。下面是我写的一个关于获取openid的类
<?php
/**
* 微信授权相关接口
*
* @link http://www.phpddt.com
*/
class Wchat
{
private $app_id = 'wx444444444444';
private $app_secret = '77777777';
private $state='aaaa';
/**
* 获取微信授权链接
*
* @param string $redirect_uri 跳转地址
* @param mixed $state 参数
*/
public function get_authorize_url($redirect_uri = '', $state = '')
{
$redirect_uri = urlencode($redirect_uri);
return "https://open.weixin.qq.com/connect/oauth2/authorize?appid={$this->app_id}&redirect_uri={$redirect_uri}&response_type=code&scope=snsapi_userinfo&state={$state}#wechat_redirect";
}
/**
* 获取微信openid
*/
public function getOpenid($turl)
{
if (!isset($_GET['code'])){
//触发微信返回code码
$url=$this->get_authorize_url($turl, $this->state);
Header("Location: $url");
exit();
} else {
//获取code码，以获取openid
$code = $_GET['code'];
$access_info = $this->get_access_token($code);
return $access_info;
}
}
/**
* 获取授权token网页授权
*
* @param string $code 通过get_authorize_url获取到的code
*/
public function get_access_token($code = '')
{
$appid=$this->app_id;
$appsecret=$this->app_secret;
$token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$appid."&secret=".$appsecret."&code=".$code."&grant_type=authorization_code";
//echo $token_url;
$token_data = $this->http($token_url);
// var_dump( $token_data);
if($token_data[0] == 200)
{
$ar=json_decode($token_data[1], TRUE);
return $ar;
}
return $token_data[1];
}
public function http($url, $method='', $postfields = null, $headers = array(), $debug = false)
{
$ci = curl_init();
/* Curl settings */
curl_setopt($ci, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ci, CURLOPT_TIMEOUT, 30);
curl_setopt($ci, CURLOPT_RETURNTRANSFER, true);
switch ($method) {
case 'POST':
curl_setopt($ci, CURLOPT_POST, true);
if (!empty($postfields)) {
curl_setopt($ci, CURLOPT_POSTFIELDS, $postfields);
$this->postdata = $postfields;
}
break;
}
curl_setopt($ci, CURLOPT_URL, $url);
curl_setopt($ci, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ci, CURLINFO_HEADER_OUT, true);
$response = curl_exec($ci);
$http_code = curl_getinfo($ci, CURLINFO_HTTP_CODE);
if ($debug) {
echo "=====post data======
";
var_dump($postfields);
echo '=====info=====' . "
";
print_r(curl_getinfo($ci));
echo '=====$response=====' . "
";
print_r($response);
}
curl_close($ci);
return array($http_code, $response);
}
}
?>getOpenid($turl)这个方法就是获取openid的方法。前端调用代码如下：
$openid=isset($_COOKIE['openid'])?$_COOKIE['openid']:'';
if(empty($openid))
{
$wchat=new wchat();
$t_url='http://'.$_SERVER['HTTP_HOST'].'/user.php?act=register';
$info=$wchat->getOpenid($t_url);
if($info){
$openid=$info['openid'];
setcookie('openid',$openid,time()+86400*30);
}
}
热心网友
时间：2022-05-11 06:32
获取code
https://open.weixin.qq.com/connect/oauth2/authorize?appid=这里是你的公众号的APPID&redirect_uri=http://www.xx.com/getcode&response_type=code&scope=snsapi_userinfo&state=123#wechat_redirect
用户点击确认登录，自动跳转下面地址得到code
http://www.xx.com/getcode 这个是你自己的跳转地址
http://www.xx.com/getcode?code=0064f7afef7af7b395147bfe8b51f7bf&state=123
后面的这个 ?code=……123 是微信自动跳转添加的，不是你自己加的
下面是PHP语言，写在getcode这个页面里
$code = $_GET['code'];//获取code
$weixin = file_get_contents("https://api.weixin.qq.com/sns/oauth2/access_token?appid=这里是你的APPID&secret=这里是你的SECRET&code=".$code."&grant_type=authorization_code");//通过code换取网页授权access_token
$jsondecode = json_decode($weixin); //对JSON格式的字符串进行编码
$array = get_object_vars($jsondecode);//转换成数组
$openid = $array['openid'];//输出openid
//***方法二
$appid = "公众号在微信的appid";
$secret = "公众号在微信的app secret";
$code = $_GET["code"];
$get_token_url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$appid.'&secret='.$secret.'&code='.$code.'&grant_type=authorization_code';
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$get_token_url);
curl_setopt($ch,CURLOPT_HEADER,0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
$res = curl_exec($ch);
curl_close($ch);
$json_obj = json_decode($res,true);
//根据openid和access_token查询用户信息
$access_token = $json_obj['access_token'];
$openid = $json_obj['openid'];
$get_user_info_url = 'https://api.weixin.qq.com/sns/userinfo?access_token='.$access_token.'&openid='.$openid.'&lang=zh_CN';
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$get_user_info_url);
curl_setopt($ch,CURLOPT_HEADER,0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
$res = curl_exec($ch);
curl_close($ch);
//解析json
$user_obj = json_decode($res,true);
$_SESSION['user'] = $user_obj;
print_r($user_obj);
热心网友
时间：2022-05-11 07:50
