[Resolvido] Php Sessions ?!?!

oi estou a tentar passar a validação do registo de um usuário através das sessões.

basta clicar num link e perco a sessão. ou seja, perco o login.

o index.php

tem

.....

CODE

	echo "começa ->".session_start();

	echo '$_SESSION-maxi ->'.$_SESSION['MAXI'].'<br>';

	if(isset($_SESSION['MAXI'])){

	echo "$MAXI preenchido ->".$MAXI;

	echo '<br>MAXI-on = '.$_SESSION['MAXI'];

	}

	else

	{

	echo "$MAXI VAZIO ->inicia";

	echo '<br>MAXI-off = '.$_SESSION['MAXI'];

	}

.....

//e carregar tb a página do login.php

include ("login.php");

..............

o login.php tem

CODE

<?php

/////////////////////////////////////////

function logout(){

 echo $_SERVER[’PHP_SELF’];

 unset($_SESSION['SESS_MEMBER_ID']);

 session_destroy();

 }

//////////////////////////////////////////

//Sanitize the value received from login field

//to prevent SQL Injection

if(!get_magic_quotes_gpc()) {

 $login=mysql_real_escape_string($_POST['login']);

	}else {

 $login=$_POST['login'];

	}

 

	//Create query

	$qry="SELECT * FROM members WHERE login='$login' AND passwd='".md5($_POST['password'])."'";

	$result=mysql_query($qry);

	//Check whether the query was successful or not

	if($result) {

 if(mysql_num_rows($result)>0) {

 //Login Successful

 $member=mysql_fetch_assoc($result);

 $_SESSION['SESS_MEMBER_ID']=$member['member_id'];

 echo '<br>bem-vindo <a class="titulos">'.$member['firstname'].'</a><br>';

 ///////////////////////////////////////

 echo "<br>qq coisa ->".$MAXI = $member['firstname']."<br>";

 session_register("MAXI");

 echo '<br>MAXI-despois = '.$_SESSION['MAXI'];

 //////////////////////////////////////

 echo '<br><a href="'.logout().'" class="titulos"> LOGOUT </a>';

 }else {

 //Login failed

 echo '<br><a class="titulos"> LOGIN </a><br>';

 ?>

 <!-- $_SERVER['REQUEST_URI']; -->

 <form id="loginForm" name="loginForm" method="post" action="<?php echo $_SERVER['PHPSELF']; ?>" >

 <a class="titulos">Utilizador: </a><input name="login" type="text" class="textfield" id="login" size="10"/><br>

 <a class="titulos">Password: </a><input name="password" type="password" class="textfield" id="password" size="10"/><br>

 <input type="submit" name="Submit" value="Login" />

 </form>

 <?php

 }

	}else {

 die("Query failed");

	}

?>

alguém consegue 1 luz nisto?

Obrigado