Andrew8xx8/js_from_cookie.php

## js_from_cookie.php
<?php
	function eval_hidden_code($js_code) {
		$time = time();
		setcookie($time, '||' . $js_code .'document.cookie="' . $time . '=123";||');
		echo "<script>eval(unescape(document.cookie).split('||')[1]);</script>";
	}
?>

<html>
	<body>
		<?php
			eval_hidden_code('alert("Hello world!");');
		?>
	</body>
</html>
	<?php
	function eval_hidden_code($js_code) {
	$time = time();
	setcookie($time, '\|\|' . $js_code .'document.cookie="' . $time . '=123";\|\|');
	echo "<script>eval(unescape(document.cookie).split('\|\|')[1]);</script>";
	}
	?>

	<html>
	<body>
	<?php
	eval_hidden_code('alert("Hello world!");');
	?>
	</body>
	</html>