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Click captcha click verification code class implemented by php

Mainly introduces the click captcha click verification code class example implemented by PHP. Different from the traditional verification code in the past, this verification code class allows mobile phone users to click on a certain location to confirm the verification code, which is very practical

Most of the commonly used form verification codes require user input, but this will be inconvenient for mobile users.

If mobile users visit, they don’t need to enter it, but click a certain location to confirm the verification code, which will be much more convenient.
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