View file adm/sys/fnc.php

<?php
session_start();
$admin[]=md5("123456");
$t=count($admin);
for($i=0; $i<$t; $i++)
{
	if(md5($_POST['pass'])==$admin[$i] or $_SESSION['pass']==$admin[$i]){$_SESSION['pass']=$admin[$i]; $adm=true;}
}

if(!$adm)
{
	echo'Ваш пароль:<br><form action="?" method="post">
	<input type="password" name="pass">
	<input type="submit" value="Войти">';
	exit;
}
?>