PHP realizes that clicking on the verification code or not seeing it clearly will refresh the verification code

This article mainly introduces the relevant information on how to use the GD library to create verification codes in PHP (clicking on the verification code or not seeing it clearly will refresh the verification code). Friends who need it can refer to it. I hope it can help everyone.

This is a page that uses the GD library to generate a verification code

test.PHP

This is a page that can be partially refreshed and verified after clicking on the verification code or seeing it clearly. Code

test2.php

 

 
 
看不清？

is shown below:

php implementation code for real-time refresh when clicking on the verification code

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