What should I do if the thinkphp Alipay login verification code does not display an error?

In the ThinkPHP project, when using the Alipay login function, sometimes the verification code is not displayed, causing the user to be unable to log in. This article explains the cause and solution of this problem.

1. Cause of the problem

The reason why the verification code is not displayed is generally caused by the lack of necessary JS resource files. In the Alipay login of the ThinkPHP project, the generation of verification code images is implemented through JavaScript. Therefore, if the relevant JS resource files are missing, the verification code image will not be displayed properly.

2. Solution

The following are simple steps to solve the problem of Alipay login verification code not displaying:

(1) Download JS resource file

Please download the relevant JS resource files from the Alipay development platform. The specific steps are:

• Log in to the Alipay development platform and enter the "Application Management" page.
• Click the "My Applications" tab and select the application that needs to download the JS resource file.
• Enter the "Application Overview" page and find the "Download Development Package" tab of the "Development Assistance" module.
• Click the "Download JS" button to get the relevant JS resource files.

(2) Introduce JS resource files

After the download is completed, introduce the relevant JS resource files into the ThinkPHP project to solve the problem of the verification code not being displayed. The specific steps are as follows:

• Copy the downloaded JS resource file to the public/static directory.
• In the HTML code of the login page, add the following code snippet and introduce the relevant JS resource file:

<script></script>
<script></script>

(3) Test results

Complete the above two After these steps, try using the Alipay login function again. The problem should have been solved and the verification code image should be displayed normally.

3. Summary

In the ThinkPHP project, the problem of Alipay login verification code not being displayed is generally caused by the lack of necessary JS resource files. By downloading and introducing the relevant JS resource files, we can solve this problem and make the verification code image display normally. However, if the above methods cannot solve the problem, it may be due to other reasons and further investigation is required.

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