Use PHP to implement WeChat applet to send template messages (with code)

The content of this article is about using PHP to implement WeChat applet to send template messages (with code). It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

This chapter will briefly talk about the template message sending of the WeChat applet. It is relatively simple, but there is a pitfall that should be paid attention to.

The WeChat address is:

https://api.weixin.qq.com/cgi-bin/message/wxopen/template/send?access_token=ACCESS_TOKEN

The relevant parameters are

##ParametersRequiredDescriptiontouser is the openidrecipient (user) template_idYesThe id of the template message that needs to be deliveredpageNoThe jump page after clicking the template card is limited to pages within this mini program. Supports parameters, (example index?foo=bar). If this field is not filled in, the template will not jump. form_id is the formId for the submit event in the form submission scenario; in the payment scenario, it is the prepay_id# for this payment ##datacoloremphasis_keyword The basic parameters and addresses are the ones tested above. Some people may wonder where form_id, openid, tmeplate_id should come from. Get the following to briefly talk about

		of the
is the content of the	template. If not filled in, an empty template will be issued
No	The color of the template content font, if not filled in, the default is black [Obsolete]
No	Keywords that need to be amplified in the template. If not filled in, there will be no amplification by default.

form_id can be provided by the front-end. The front-end can submit the form on each button to obtain the form_id and give it to the back-end. At the same time, the back-end gets the relevant openid. What is recommended here is that the front end provides as much as possible to the back end, that is, each button provides an id to the back end. The form_id is valid for 7 days. Regardless of whether the operator uses it or not, it is better to have more than less.

template_id is the template id, which can be obtained from the template message by logging into the WeChat applet background.

When we know these parameters, the developer will definitely want to test it immediately, and then let the front end provide the form_id. Here are the next two pitfalls

The first pit: the form_id obtained by the computer It cannot be used

The second pitfall: form_id needs to be obtained from a real phone, but the real phone must also be an online project. If the local test is not online, it will prompt to verify the form_id, and WeChat does not explain it. This point of attention is that it needs to be tested online after the review is successfully released.

Next let’s talk about the back-end code

<?php
 //获取accesstoken
    public function getAccessToken($appid,secret){
       $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appid}&secret={$secret}";
        $res = $this->curl_get($url);
        $res = json_decode($res,1);
        return $res[&#39;access_token&#39;];
    }
//获取模板消息内容主体
//因为是测试所以写死，大家可以通过传参的方式获取
    public function getMsg($openid,$template_id,$form_id,$emphasis_keyword=&#39;keyword1&#39;){
        $data[&#39;data&#39;]= [&#39;keyword1&#39;=>[&#39;value&#39;=>&#39;test1&#39;,&#39;color&#39;=>&#39;&#39;],&#39;keyword2&#39;=>[&#39;value&#39;=>&#39;test2&#39;,&#39;color&#39;=>&#39;&#39;],&#39;keyword3&#39;=>[&#39;value&#39;=>&#39;test1&#39;,&#39;color&#39;=>&#39;&#39;]];//内容主体
        $data[&#39;touser&#39;] = $openid;//用户的openid
        $data[&#39;template_id&#39;] = $template_id;//从微信后台获取的模板id
        $data[&#39;form_id&#39;] = $form_id;//前端提供给后端的form_id
        $data[&#39;page&#39;] = &#39;pages/index/index&#39;;//小程序跳转页面
        $data[&#39;emphasis_keyword&#39;] = $emphasis_keyword;//选择放大的字体
        return $data;
    }
    public function send($appid,secret,$openid,$template_id,$form_id){
        $access_token = $this->getAccessToken($appid,secret);
        $send_url = &#39;https://api.weixin.qq.com/cgi-bin/message/wxopen/template/send?    access_token=&#39; . $access_token;
        $data = $this->getMsg($openid,$template_id,$form_id);
        $str = $this->curl_post($send_url,json_encode($data));
        $str = json_decode($str,1);
        return $str;
    }
    public function curl_post($url, $fields, $data_type=&#39;text&#39;)
    {
        $cl = curl_init();
        if(stripos($url, &#39;https://&#39;) !== FALSE) {
            curl_setopt($cl, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($cl, CURLOPT_SSL_VERIFYHOST, FALSE);
            curl_setopt($cl, CURLOPT_SSLVERSION, 1);
        }
        curl_setopt($cl, CURLOPT_URL, $url);
        curl_setopt($cl, CURLOPT_RETURNTRANSFER, 1 );
        curl_setopt($cl, CURLOPT_POST, true);        
        curl_setopt($cl, CURLOPT_POSTFIELDS, $fields);
        $content = curl_exec($cl);
        $status = curl_getinfo($cl);
        curl_close($cl);
        if (isset($status[&#39;http_code&#39;]) && $status[&#39;http_code&#39;] == 200) {
            if ($data_type == &#39;json&#39;) {
                $content = json_decode($content);
            }
            return $content;
        } else {
            return FALSE;
        }
    }
    public function curl_get($url, $data_type=&#39;text&#39;)
    {
        $cl = curl_init();
        if(stripos($url, &#39;https://&#39;) !== FALSE) {
            curl_setopt($cl, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($cl, CURLOPT_SSL_VERIFYHOST, FALSE);
            curl_setopt($cl, CURLOPT_SSLVERSION, 1);
        }
        curl_setopt($cl, CURLOPT_URL, $url);
        curl_setopt($cl, CURLOPT_RETURNTRANSFER, 1 );
        $content = curl_exec($cl);
        $status = curl_getinfo($cl);
        curl_close($cl);
        if (isset($status[&#39;http_code&#39;]) && $status[&#39;http_code&#39;] == 200) {
            if ($data_type == &#39;json&#39;) {
                $content = json_decode($content);
            }
            return $content;
        } else {
            return FALSE;
        }        
    }
    punblic function index(){
           $appid = &#39;xxx&#39;;//小程序appid
           $openid = &#39;xxx&#39;;//接收用户的openid
           $template_id  = &#39;xxx&#39;;//从微信后台获取的模板id
           $form_id = &#39;xxx&#39;;//七天内的formid
           $data = $this->send($appid,secret,$openid,$template_id,$form_id);
           var_dump($data);//打印测试结果
    }

The above is the code for sending template messages. In fact, as long as you get a few corresponding parameters and pay attention to the relevant pitfalls, you can successfully test sending

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