Question about some code in Your_account/index.php

Hangin' Around Joined: Feb 01, 2006 Posts: 43

Was looking through the code in Your_Account/index.php and came across this:

Code:




    if ($username != '') // SecurityReason.com Fix 2005 [sp3x]


    if((isset($cookie[1])) AND (strtolower($username) == strtolower($cookie[1])) AND ($userinfo['user_password'] == $cookie[2])) {


   echo "<font class=\"option\">".htmlentities($username).", "._WELCOMETO." $sitename!</font><br><br>";


   echo "<font class=\"content\">"._THISISYOURPAGE."</font></center><br><br>";


   /* Nav bar */


   nav(1);


   echo "<br><br>";


    } else {


   echo "<font class=\"title\">"._PERSONALINFO.": ".htmlentities($username)."</font></center><br><br>";


    }


   else Header("Location: modules.php?name=$module_name");

Notice specifically these 2 lines

Code:




    if ($username != '') // SecurityReason.com Fix 2005 [sp3x]


....


....


   else Header("Location: modules.php?name=$module_name");

Now maybe it is because I don't quite have a full handle on all the PHP tricks, but where are the { } for the if part? Or is the "if/else" clause considered a "single" line?

This is confusing the heck out of my editor that automatically finds the matching parts Wink

Site Admin/Owner Joined: Aug 27, 2002 Posts: 17088

- it is a short-hand way of writing but it does get confusing with if/then/else logic. I don't write like that, but some do. They are sub-seting if's. Maybe this will help? Try changing the values of $x and $y to see the logic flow.

Code:

<?


$x=1;


$y=2;





if ($x==1)


    if ($y==2)


        echo "x is equal to 1 and y is equal to 2";


    else echo "x is equal to 1 but y is NOT equal to 2";


else echo "Neither x nor y are satisfied";


?>

It is best used when you only have if/then clauses, as in

Code:

<?


if ($x==1)


  if ($y==2)


    if ($z==3)


      echo "All if's are satisfied and I don't care if any parts aren't!";


?>