Campos ocultos php

Código Php

<?
class c_HiddenVars {
	function display($a) {
		$c = Count($a);
		for ($i = 0, Reset($a); $i < $c; $i++, Next($a)) {
			$k = Key($a); $v = $a[$k];
			if (is_array($v)) {
				$vc = Count($v);
		    	for (Reset($v), $vi = 0; $vi < $vc; $vi++, Next($v)) {
					$vk = Key($v);
					echo "<input type=hidden name=\"$k\[$vk\]\" value=\"".htmlspecialchars($v[$vk])."\">\n";
				}
			} else {
				echo "<input type=hidden name=\"$k\" value=\"".htmlspecialchars($v)."\">\n";
			}
		}
	}
	function get() {
		global $HTTP_GET_VARS;
		if (is_array($HTTP_GET_VARS))  { $this->display($HTTP_GET_VARS); }
	}
	function post() {
		global $HTTP_POST_VARS;
		if (is_array($HTTP_POST_VARS)) { $this->display($HTTP_POST_VARS); }
	}
	
	function all() {
		$this->get();
		$this->post();
	}
};
?>