reCAPTCHA with Twitter bootstrap using PHP

Hi, Today we are going to make reCAPTCHA in responsive with help of twitter bootstrap using PHP. We are know about reCAPTCHA and it is api to avoid the spam in form submission.

First we need to get the API key from the following url

it consist of two types of key, one is public key and another one is private key. For CAPTCHA generation public key is enough.

Here i have used following php function to generate the catpcha

Here is my entire index.php code

That’s it…Thank you…
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