- Project page: http://www.google.com/recaptcha/
- Repository: https://github.com/google/recaptcha
- Version: 1.1.1
- License: BSD, see LICENSE
Description
reCAPTCHA is a free CAPTCHA service that protect websites from spam and abuse. This is Google authored code that provides plugins for third-party integration with reCAPTCHA.
Manual installation
If you wish to install the library manually (i.e. without Composer), an autoloader is provided assrc/autoload.php
. You can require it in your script instead of the usual vendor/autoload.php
created by Composer. For example,
require('/path/to/recaptcha/autoload.php');
$recaptcha = new \ReCaptcha\ReCaptcha($secret);
// etc.
Usage
First, register keys for your site at https://www.google.com/recaptcha/admin
When your app receives a form submission containing the g-recaptcha-response
field, you can verify it using:
<?php
$recaptcha = new \ReCaptcha\ReCaptcha($secret);
$resp = $recaptcha->verify($gRecaptchaResponse, $remoteIp);
if ($resp->isSuccess()) {
// verified!
} else {
$errors = $resp->getErrorCodes();
}
You can see an end-to-end working example in examples/example-captcha.php
项目地址:https://github.com/google/recaptcha