标签:key urlencode param cep curl 初始 one ams encode
思路:
以下仅是代码片段,更多代码在Github
back_end/application/api/controller
mini_program/pages/student_mine
mini_program/pages/login
小程序前端获取code,将code与id传回后台
wx_binding: function () {
var that = this
wx.login({
success: function (res) {
console.log("code: ", res.code)
wx.request({
url: ‘******/user/wxbinding‘,
data: {
code: res.code,
id: getApp().globalData.user.id,
},
method: "POST",
header: {
"Content-Type": "application/x-www-form-urlencoded"
},
})
}
})
}
ThinkPHP5后端接受到code,用code得到openid,并将openid与账号id绑定
public function wxBinding() {
$url = "https://api.weixin.qq.com/sns/jscode2session";
// 参数
$params = array();
$params[‘appid‘] = ‘******‘;
$params[‘secret‘] = ‘******‘;
$params[‘js_code‘] = $_POST[‘code‘];
$params[‘grant_type‘] = ‘authorization_code‘;
// 微信API返回的session_key 和 openid
$arr = $this -> httpCurl($url, $params, ‘POST‘);
$arr = json_decode($arr, true);
// 判断是否成功
if (isset($arr[‘errcode‘]) && !empty($arr[‘errcode‘])) {
return json([‘error_code‘ => ‘2‘, ‘msg‘ => $arr[‘errmsg‘], "result" => null]);
}
$openid = $arr[‘openid‘];
// 插入openid
$bind = db(‘user‘) -> where(‘id‘, $_POST[‘id‘]) -> update([‘openid‘ => $openid]);
if ($bind) {
return json([‘error_code‘ => ‘0‘, ‘msg‘ => ‘绑定成功‘]);
} else {
// 找不到账号
return json([‘error_code‘ => ‘1‘, ‘msg‘ => ‘绑定失败‘]);
}
}
解密获取openid
use \think\Exception;
function httpCurl($url, $params, $method = ‘GET‘, $header = array(), $multi = false) {
date_default_timezone_set(‘PRC‘);
$opts = array(
CURLOPT_TIMEOUT => 30,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_SSL_VERIFYHOST => false,
CURLOPT_HTTPHEADER => $header,
CURLOPT_COOKIESESSION => true,
CURLOPT_FOLLOWLOCATION => 1,
CURLOPT_COOKIE
=> session_name(). ‘=‘.session_id(),
);
/* 根据请求类型设置特定参数 */
switch (strtoupper($method)) {
case ‘GET‘:
// $opts[CURLOPT_URL] = $url . ‘?‘ . http_build_query($params);
// 链接后拼接参数 & 非?
$opts[CURLOPT_URL] = $url. ‘?‘.http_build_query($params);
break;
case ‘POST‘: //判断是否传输文件
$params = $multi ? $params : http_build_query($params);
$opts[CURLOPT_URL] = $url;
$opts[CURLOPT_POST] = 1;
$opts[CURLOPT_POSTFIELDS] = $params;
break;
default:
throw new Exception(‘不支持的请求方式!‘);
}
/* 初始化并执行curl请求 */
$ch = curl_init();
curl_setopt_array($ch, $opts);
$data = curl_exec($ch);
$error = curl_error($ch);
curl_close($ch);
if ($error) throw new Exception(‘请求发生错误:‘.$error);
return $data;
}
小程序前端返回code
wx.login({
success: function (res) {
console.log("code: ", res.code)
wx.request({
url: ‘******/user/wxlogin‘,
data: {
code: res.code,
},
method: "POST",
header: {
"Content-Type": "application/x-www-form-urlencoded"
},
success: function (res) {
},
})
}
})
后端获取openid,若有用户,返回用户信息给小程序
public function wxLogin() {
if (empty($_POST[‘code‘])) {
return json([‘error_code‘ => ‘1‘, ‘msg‘ => ‘请输入code!‘]);
}
$url = "https://api.weixin.qq.com/sns/jscode2session";
// 参数
$params = array();
$params[‘appid‘] = ‘******‘;
$params[‘secret‘] = ‘******‘;
$params[‘js_code‘] = $_POST[‘code‘];
$params[‘grant_type‘] = ‘authorization_code‘;
// 微信API返回的session_key 和 openid
$arr = $this -> httpCurl($url, $params, ‘POST‘);
$arr = json_decode($arr, true);
// 判断是否成功
if (isset($arr[‘errcode‘]) && !empty($arr[‘errcode‘])) {
return json([‘error_code‘ => ‘2‘, ‘msg‘ => $arr[‘errmsg‘], "result" => null]);
}
$openid = $arr[‘openid‘];
// $session_key = $arr[‘session_key‘];
// 从数据库中查找是否有该openid
$user = db(‘user‘) -> where(‘openid‘, $openid) -> find();
if ($user) {
unset($user[‘openid‘]); // 删除openid
unset($user[‘password‘]); // 删除密码
return json([‘error_code‘ => ‘0‘, ‘msg‘ => ‘登录成功‘, ‘data‘ => $user]);
} else {
// 该微信用户没有绑定账号
return json([‘error_code‘ => ‘1‘, ‘msg‘ => ‘您没有绑定账号,请登录后在“我的”页面绑定~‘]);
}
}
学习博客:
小程序和ThinkPHP5结合实现登录状态(附代码)
微信小程序授权登录+Tp5后端
从零开始开发微信小程序(三):微信小程序绑定系统账号并授权登录之微信端
标签:key urlencode param cep curl 初始 one ams encode
原文地址:https://www.cnblogs.com/oeong/p/13375078.html