Example 6 - AntiSpam Protection

is_valid) { $_SESSION['contactform']['passedimage'] = true; return true; } return false; } if(!isset($_SESSION['contactform']['passedimage'])){//We dont want to show the user the image verification if they have already passed it. $_SESSION['contactform']['passedimage'] = false; } require_once($_SERVER['DOCUMENT_ROOT']."/tutorials/formprocessor/contact/recaptchalib.php");//Include the recaptcha class $javascript = << var RecaptchaOptions = { theme: 'custom', lang: 'en', custom_theme_widget: 'recaptcha_widget' }; EOD; //These keys will work on your server, you can apply for your own if you wish $public = "6LcVYgQAAAAAABG5IOef21_v3tuhZXGRKEg-WXdP"; //Public Key for recaptcha $private = "6LcVYgQAAAAAAJFjVVeejrCHaugQ0pT5dT10IvsV";//Private key for recaptcha $error = null; //No Errors as of yet $recaptchahtml = recaptcha_get_html($public, $error);//Get the recaptcha HTML - remember to global this in the form function echo $javascript;//Display the recaptcha Javascript function showForm(){ global $recaptchahtml; $form = <<

Here is a basic example of the formprocessor, this is a simple input.

In this example:

You Must Provide your name.
Your Name must only contain letters
You Must Provide your email address.
Your Email must be in the a@b.com format
You must provide a subject
Your subject must be at least 5 characters long
You must fill in the message text area
Your message must be greater than 10 characters long
You must get the image verification correct

Error:

Name:
!

Email:
!

Please enter a subject for your Message:
!

Please Enter your message:

<error><strong class="error">!</strong></error>
	<compulsory message="You Must provide a message" />
    <minLength length="10" message="Your message must contain at least 10 chanracters long" />
</element>
<br /><br />
<div id="recaptcha_widget" style="display:none">
    <div id="recaptcha_image"></div>
    <div class="recaptcha_only_if_incorrect_sol" style="color:red">Incorrect please try again</div>
    <span class="recaptcha_only_if_image">Enter the words above:</span>
    <span class="recaptcha_only_if_audio">Enter the numbers you hear:</span>
    <element id="recaptcha_response_field">
        <input type="text" />
        <error><strong class="error">!</strong></error>
        <callback function="checkText" message="Your answer was incorrect, please try again"/>
    </element>
    <div><a href="javascript:Recaptcha.reload()">Get another CAPTCHA</a></div>
    <div class="recaptcha_only_if_image"><a href="javascript:Recaptcha.switch_type('audio')">Get an audio CAPTCHA</a></div>
    <div class="recaptcha_only_if_audio"><a href="javascript:Recaptcha.switch_type('image')">Get an image CAPTCHA</a></div>
    <div><a href="javascript:Recaptcha.showhelp()">Help</a></div>
    </div>
	{$recaptchahtml}
<element id="submit">
	<input type="submit" value="Submit"/>
</element>
</form>
EOD;
return $form;
}
$processor =& new FormProcessor(showForm());
try{
	if(isset($_POST["submit"])) {
		if ($processor->validate()) {
			echo 'The Form Was Submitted, Wahey!<br />Here is the $_POST data';
			echo '<pre>';
			print_r($_POST);
			echo '</pre>';
		}
		else
			$processor->display();
	}
	else
		$processor->display();
}
catch(Exception $e)
 {
 echo 'Message: ' .$e->getMessage();
 }
?>
</body>
</html>