Formulier checken via functie (Opgelost)

<?php
check_login();
?>

<form method="post">
 <input type="text" name="login_username">
 <input type="password" name="login_password">
 <input type="checkbox" name="login_check" value="1">
 <input type="submit">
</form>

<?php
check_login();
?>
 
<form method="post">
 <input type="text" name="login_username">
 <input type="password" name="login_password">
 <input type="checkbox" name="login_check" value="1">
 <input type="submit">
</form>

function check_login()
{
$login_username = $_POST['login_username'];
$login_password = md5($_POST['login_password']);
$login_check = $_POST['login_check'];

if($_SERVER['REQUEST_METHOD'] == 'POST')
 {
	$q = mysql_query("SELECT * FROM users WHERE name='".$login_username."' AND pass='".$login_password."'");
	$row = mysql_fetch_assoc($q);
	if(mysql_num_rows($q) == 1)
	 {
		$_SESSION['user'] = $row['name'];
		$_SESSION['level'] = $row['level'];
		$_SESSION['id'] = $row['id'];
		$_SESSION['logged'] = "1";
		$_SESSION['ip'] = $_SERVER['REMOTE_ADDR'];
		if($login_check == 1)
		 {
			setcookie("login", $row['id'].";".$row['name'].";".$row['pass'], time()+60*60*24*7);
		 }

		header("location: ".$site_url."");
	 }
	else
	 {
		echo $t_login_wrong;
	 }
 }
}

function check_login()
{
$login_username = $_POST['login_username'];
$login_password = md5($_POST['login_password']);
$login_check = $_POST['login_check'];
 
if($_SERVER['REQUEST_METHOD'] == 'POST')
 {
	$q = mysql_query("SELECT * FROM users WHERE name='".$login_username."' AND pass='".$login_password."'");
	$row = mysql_fetch_assoc($q);
	if(mysql_num_rows($q) == 1)
	 {
		$_SESSION['user'] = $row['name'];
		$_SESSION['level'] = $row['level'];
		$_SESSION['id'] = $row['id'];
		$_SESSION['logged'] = "1";
		$_SESSION['ip'] = $_SERVER['REMOTE_ADDR'];
		if($login_check == 1)
		 {
			setcookie("login", $row['id'].";".$row['name'].";".$row['pass'], time()+60*60*24*7);
		 }
 
		header("location: ".$site_url."");
	 }
	else
	 {
		echo $t_login_wrong;
	 }
 }
}