Location: PHPKode > scripts > Customizable CAPTCHA > form.php
session_start(); // captcha class uses session to hold captcha code 
include "class.captcha.php";

if( $_SERVER['REQUEST_METHOD'] == 'POST' ) { /* post is used for submitting form */

	// captcha verification code 

	if( Captcha::isValid($_POST['captcha']) )
		echo "<h1>Valid</h1>";
		echo "<h1>Verification failed!</h1>"; 
	echo "<a href='index.php'> Try again </a>";




<form action="" method="post">
	<br />
	<b>Note : </b> Set a ttf font before taking demo refer getcaptcha.php. use setFont() or place a font file in current dir [ rename it to captcha.ttf ] <br /> <br />

	<!-- load the captcha image -->
	<img src="getcaptcha.php" width="100" height="40" /> <br />
	<!-- use same image size as you used in Captcha::setSize() method. -->
	Enter the letters as shown in the image above<br /> <br /> <input type="text" name="captcha" />
	<input type="submit" value="Submit" />
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