PHP get with no variable set

[tomhoad]

Hi

 

I would like to do some error reporting using GET. For example I have:

 

The URL: www.example.com/index.php?st=not_registered

 

$st = mysql_real_escape_string($_GET['st']);
if ($st = "not_registered") {echo "<p>You are not already registered!</p>";}
if ($st = "already_registered") {echo "<p>That email is already registered!</p>";}
if ($st = "login_fail") {echo "<p>You are not registered! Please enter your email below.</p>";}

 

However, that seems to ignore the value of $st and just print all the options?

 

Thank you for your help.

[mattal999]

You should be using ==, not =, as = on it's own declares the variable, which will technically always pass the IF test. I suggest you read up on logical operators.