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This article is about how to use php+js to achieve extreme test, drag slider Captcha verification form content. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.

code implementation

HTML file

Extreme slider drag Captcha-Code Farmer Community-web video sharing network

$TN.onsuccess(function(){

//Verification passed

});

php file: check.php

Main core file: TnCode.class.php

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