Show links for logged in users

[Ghezzo]

Hey, what is the easiest way to show certain links for logged in users, and other links for non-logged in users?

 

Like I want to show "Register" and "Login" for non-logged in users

and "Members Area" and "Logout" for logged in users.

 

 

Is there some easy way to do this?

 

 

 

 

 

 

And one more thing, a guy told me my site was vulnerable to SQL injections.

He said:

"Your code is vulnerable for sql injections. You' should pass all your post data through a function like mysql_real_escape()."

 

How do I fix this? I'm very new to PHP.

[sKunKbad]

mysql_real_escape_string is a php function, and you can read about using it in the php manual:

 

http://us.php.net/manual/en/function.mysql-real-escape-string.php

 

As for checking if a user is logged in, what are you using to log them in? Once logged in, are you setting a cookie with some sort of value? This is what you would check.

 

 

[Ghezzo]

As I said, I'm very new to PHP

 

But I pretty sure it's cookies.

[Ghezzo]

Got it working with this code

 

<?php
if(isset($_COOKIE['ID_my_site']))
echo '<a href="members.php">Members Area</a> | <a href="logout.php">Logout</a> | You are logged in as: (Coming soon)';
else
echo '<a href="register.php">Register</a> | <a href="login.php">Login</a> | You are not logged in.</a>';
?>