Fixed the problem of adding verification code to Dede custom form

How to add a dede template to the custom form on the dedecms website with its own verification code.

Sometimes, we need to add a verification code to the custom form on the dede website to prevent malicious filling in and submission of the form.

# We can use the following methods to achieve: (Recommended learning: CMS )

## 首 First, we want to find/plus/diy .php file

Introduce the file in the header:

require_once(DEDEINC.'/membermodel.cls.php');

Then find

elseif($do == 2)
    {  在这个地方加入代码块 
       //验证码验证
        $svali = GetCkVdValue();
         if(preg_match("/1/",$safe_gdopen)){
             if(strtolower($vdcode)!=$svali || $svali=='')
             {
                 ResetVdValue();
                 ShowMsg('验证码错误！', '-1');
                 exit();
             }  
         }

and save the file after modification.

Second step: Insert the code block into the custom form static page using the verification code

<input type="text" class="intxt w200" style="width: 50px; text-transform: uppercase;" id="vdcode" name="vdcode" class="code"/>
<img id="vdimgck" align="absmiddle" onclick="this.src=this.src+&#39;?&#39;" style="cursor: pointer;" alt="看不清？点击更换" src="/include/vdimgck.php"/> 看不清？

You must also reference JQuery# in this static page

##Add the JS code block again

<script type="text/javascript"> 
 $ = jQuery;  
 function changeAuthCode() {  
 var num = new Date().getTime();  
 var rand = Math.round(Math.random() * 10000);  
 num = num + rand;  
 $(&#39;#ver_code&#39;).css(&#39;visibility&#39;,&#39;visible&#39;);  
 if ($("#vdimgck")[0]) {  
 $("#vdimgck")[0].src = "../include/vdimgck.php?tag=" + num;  
 }  
 return false;  
 }  
 </script>

Okay, give it a try now, is it possible to submit the verification code? A simple dedecms custom form dede template comes with the function of verification code.

Generally you will encounter an error on line 172 because there is a missing "}". Just add one on line 172. OK.

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