[SOLVED] Is this statement right..if not how do I write this?

[derekbelcher]

I am trying to switch from the antique code to what is recognized today.

 

Previous code that worked fine:

 

if(!session_is_registered(myusername)){

header("location: and so on.

 

What I want to use is $_SESSION.

 

I tried this:

 

if($_SESSION[(myusername)]{

header("location: and so on.

 

Can someone help me find the error of my way :-)  Thanks.

[premiso]

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

[derekbelcher]

thank you.  Now next question:

 

I had this code which output the first and last name of the person with the user id that was used at login, and now it won't work.  It worked with session_is_registered,  but not with the new $_SESSION.

 

<?PHP

 

$firstname = $_POST['firstname'] ;

$lastname = $_POST['lastname'] ;

$user = $_POST['username'] ;

 

$sql = "SELECT * FROM `officers` WHERE username = '{$_SESSION['myusername']}'" ;

 

$result = mysql_query($sql) ;

 

while($row = mysql_fetch_array($result, MYSQL_ASSOC))

{

 

  $dbfname = $row['firstname'] ;

  $dblname = $row['lastname'] ;

  $dbuser = $row['username'] ;

}

 

echo "$dbfname $dblname" ;

 

?>

[radi8]

Well, from what I saw, you never defined the $_SESSION['username'] variable, but you are defining the $user from the $_POST variable, so use that:

<?PHP

$firstname = $_POST['firstname'] ;
$lastname = $_POST['lastname'] ;
$user = $_POST['username'] ;
// use the $user here instead
$sql = "SELECT * FROM `officers` WHERE username = '".$user."'" ;

$result = mysql_query($sql) ;

while($row = mysql_fetch_array($result, MYSQL_ASSOC))
{

   $dbfname = $row['firstname'] ;
   $dblname = $row['lastname'] ;
   $dbuser = $row['username'] ;
}

echo "$dbfname $dblname" ;

?>

[derekbelcher]

Still didn't work.  It's just blank where the name should be appearing.  How do I define the $_SESSION variable you mentioned?  Sorry, very new to some of this.