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<?phpsession_start();
 
 include_once './src/FCaptcha.php';
 
 $c = new FCaptcha;
 
 if ($_SERVER['REQUEST_METHOD'] == 'POST') {
 echo $c->checkCaptch($_POST['captcha']) ? 'Captcha OK' : 'Captcha Bad';
 }
 ?>
 <!DOCTYPE html>
 <html lang="en">
 
 <head>
 <meta charset="UTF-8">
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>Document</title>
 </head>
 
 <body>
 <form action="" method="post">
 <div>
 <img src="captcha.php" alt="">
 </div>
 <div>
 <input type="text" name="captcha" id="">
 </div>
 <div>
 <button type="submit">Check</button>
 </div>
 </form>
 
 
 
 </body>
 
 </html>
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