How to generate QR code using thinkphp framework-PHP Tutorial-php.cn

How to generate QR code using thinkphp framework

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Release： 2023-04-06 08:06:01

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Request to obtain and display QR code

Nowadays, randomly generated QR codes have become a common network product in our daily lives. In this article, we will tell you how to use ThinkPHP to generate random QR codes. QR code, if you are interested, let’s learn about it together.

Request to obtain and display QR code

    <img src="<?php echo U(&#39;createCode?zsnumber=&#39;.$time.$kcname[&#39;id&#39;].$stuInfo[&#39;id&#39;].&#39;&stuName=&#39;.$stuInfo[&#39;stu_name&#39;].&#39;&sfid=&#39;.$stuInfo[&#39;sfid&#39;].&#39;&kcName=&#39;.$kcname[&#39;classnew&#39;].&#39;&kcid=&#39;.$kcid.&#39;&stuid=&#39;.$stuInfo[&#39;id&#39;].&#39;&#39;);?>" alt="二维码" class="code">

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Create QR code

public function createCode(){
        header(&#39;Content-Type: image/png&#39;);
        Vendor(&#39;phpqrcode.phpqrcode&#39;);
        ob_clean();   // 这里一开始我没有加 显示正常  后来就一直显示不了了 之后加上就好了 网上也有几种说法,但是我认为是缓冲区的问题 

$value = &#39;http://XXXXXX/Home/mystudy/showcode?zsnumber=&#39;.$_GET[&#39;zsnumber&#39;].&#39;&stuName=&#39;.$_GET[&#39;stuName&#39;].&#39;&sfid=&#39;.$_GET[&#39;sfid&#39;].&#39;&kcName=&#39;.
$_GET[&#39;kcName&#39;].&#39;&kcid=&#39;.$_GET[&#39;kcid&#39;].&#39;&stuid=&#39;.$_GET[&#39;stuid&#39;].&#39;&#39;; \QRcode::png($value,false, &#39;H&#39;, 8, 2, false); }

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QR code link information processing

public function showcode(){
    dump($_GET); 获得二维码中信息
  　$temp[&#39;kcid&#39;] =$_GET[&#39;kcid&#39;]; 
　　$temp[&#39;userid&#39;] = $_GET[&#39;stuid&#39;]; 
　　$info = D(&#39;表名&#39;)->where($temp)->find();
 　 $this->assign(&#39;info&#39;,$info); 
　　$this->display();
 }

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