获取带参数二维码，正常流程一般分为三步：
1.获取access_token
2.根据token和scene_id获取ticket
3.根据ticket获取二维码链接
有什么不懂可以看看官方文档：点击打开链接
也可以用微信调试工具进行调试：点击打开链接
libWecaht.php微信相关类文件
class LibWechat extends Base
{
private $appid = '';
private $appsecret = '';
public $access_token; //微信全局
public $error;
public $code_ticket; //带参数二维码ticket
public $scene_id; //带参数二维码scene_id（店铺ID）
public $showqrcode; //带参数二维码图片路径
/**
* curl 请求
*/
public function requestUrl($url, $data = '')
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); //禁止 cURL 验证对等证书
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); // 为SSL不检查名称
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// curl_setopt($ci, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
if (!empty($data)) {
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
}
$result = curl_exec($ch);
curl_close($ch);
return $result;
}
/**
* 获取通用access_token
*/
public function getAccessToken()
{
if (empty($_SESSION['accessToken'])) {
$url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=' . $this->appid . '&secret=' . $this->appsecret;
$result = json_decode($this->requestUrl($url), true);
if (empty($result['access_token'])) {
$this->error = $result['errmsg'];
return false;
}
$_SESSION['accessToken'] = $result['access_token'];
}
$this->access_token = $_SESSION['accessToken'];
return true;
}
/**
* 创建永久二维码ticket
*/
public function getTicket($scene_id)
{
$this->scene_id = $scene_id;
if (empty($this->access_token)) {
$this->getAccessToken();
}
$ticket_array = '{
"action_name": "QR_LIMIT_SCENE",
"action_info": {
"scene": {
"scene_id": "$this->scene_id",
}
}
}';
$url = 'https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=' . $this->access_token;
$result = json_decode($this->requestUrl($url, $ticket_array), true);
if (empty($result['ticket'])) {
$this->error = $result['errmsg'];
return false;
}
$this->code_ticket = $result['ticket'];
//获取到ticket后，换取二维码路径图片
$this->showqrcode();
return $this->showqrcode;
}
/**
* 创建永久二维码--换取二维码showqrcode
*/
public function showqrcode()
{
if (empty($this->code_ticket)) {
$this->error = "code_ticket不能为空";
return false;
}
$showqrcode_url = 'https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=' . $this->code_ticket;
$this->showqrcode = $showqrcode_url;
}
}wecaht.php调用获取二维码方法
/**
* 获取带参数二维码
*/
public function actionQrCode()
{
$scene_id = Yii::$app->request->get('store_id');//scene_id,获取ticket必须字段
if (empty($scene_id)) {
$this->error = 'ID不能为空';
return false;
}
$qr_code = new LibWechat();
$qr_code_url = $qr_code->getTicket($scene_id);
print_r($qr_code_url);
die;
}