Help With Undefined Variable

[internetallstar]

Having trouble finding the right solution for errors in php. The error reads.....

 

 

Notice: Undefined variable: selected in C:\wamp\www\tcpro_34000\register.php on line 264

 

Call Stack

 

#  Time    Memory  Function  Location

1  0.0124  200688  {main}( )  ..\register.php:0

 

Line 264 then reads...

 

echo "<option class=\"option\" value=\"".$row['groupname']."\"".$selected.">".$row['groupname']."</option>\n\r";

$selected="";

 

Any idea why this is happening? Any help would be nice thanks.

[KevinM1]

Judging by that error message, $selected has no value (hence, undefined), but you're trying to echo it anyway.

[internetallstar]

Here is the rest of the coding dealing with the option menu box...

 

52 if ( isset($_POST['btn_submit']) AND in_array($_POST['lst_group'],$G->getGroups()) )

53 {

54  if (!strlen($_POST['txt_lastname']) || !strlen($_POST['txt_username']) || !strlen($_POST['txt_email']) ||

&

  <?php

                    $groups = $G->getAll();

                    foreach ($groups as $row) {

                        if ( isset($_POST['lst_group']) && strlen($_POST['lst_group']) && ($row['groupname']==$_POST['lst_group']) ) $selected=" SELECTED";

                        echo "<option class=\"option\" value=\"".$row['groupname']."\"".$selected.">".$row['groupname']."</option>\n\r";

                        $selected="";

                    }

                    ?>

[KevinM1]

Line 54 is filled with syntax errors.  You have an extra '||' at the end, an unneeded '&' at the end, and no closing parentheses.

 

Also, your $selected variable is not guaranteed to have SELECTED as its value with the way you structured your if-conditional.  An if (or else) without braces ( {} ) tells PHP that only the statement immediately following it will be executed if the condition is met.  In other words, there's a big difference between:

 

if(/*stuff*/) $selected = " SELECTED";
echo "...";

 

and

 

if(/*stuff*/) {
   $selected = " SELECTED";
   echo "...";
}

 

In the first example, $selected is set if the condition is met, but the echo will always execute.  In the second example, both the $selected assignment and echo are dependent on the if condition being met.

 

Finally, in the future, when posting code on these forums, place it between either

or

tags.