Add the verification code plug-in and the Thinkphp Verification Code plug-in to thinkphp.

Add the verification code plug-in and the Thinkphp Verification Code plug-in to thinkphp.

The principle and purpose of the Verification Code are well known.

Today, we will add the verification code plug-in to the tp framework.

We have added composer.

I found one on gitHub: https://github.com/gregwar/captcha. of course you can also use its own.

First, open composer. json.

Open xshell and go to this directory.

Run: composer install

Reinstall the dependency that is not found. Download captcha.

++

The box is added with automatic loading. We can directly introduce the space for use.

 

Use Gregwar \ Captcha \ CaptchaBuilder; // What does this sentence mean? Actually, it is a path,

Then instantiate

$ Builber = new CaptchaBuilder ();

$ Builder-> build (); // generate a verification code Image

$ Builder-> save('out.jpg '); // Save the verification code Image

 inline ();?> "/> // Enter the image at the front end

$ Builder-> getPhrase (); // obtain the corresponding verification code

$ _ Session ['phrase '] = $ builder-> getPhrase (); // exists in the session

User input and Verification Code are compared

If ($ builder-> testPhrase ($ userInput )){
Echo "correct ";

} Else {
Echo "error ";
}

For more API, see: https://github.com/Gregwar/Captcha