📄 index.php
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<?phperror_reporting (E_ALL);/* Using: <?php session_start(); ?> <form action="./" method="post"> <p>Enter text shown below:</p> <p><img src="PATH-TO-THIS-SCRIPT?<?php echo session_name()?>=<?php echo session_id()?>"></p> <p><input type="text" name="keystring"></p> <p><input type="submit" value="Check"></p> </form> <?php if(count($_POST)>0){ if(isset($_SESSION['captcha_keystring']) && $_SESSION['captcha_keystring'] == $_POST['keystring']){ echo "Correct"; }else{ echo "Wrong"; } } unset($_SESSION['captcha_keystring']); ?>*/include('kcaptcha.php');if(isset($_REQUEST[session_name()])){ session_start();}$captcha = new KCAPTCHA();if($_REQUEST[session_name()]){ $_SESSION['captcha_keystring'] = $captcha->getKeyString();}?>
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