Session Help

[gazalec]

Hi what i want to do i use one PHP page to display a welcome page (eventually the whole website will be like this) and at the index.htm page there is the option to enter or login and if the customer just enters then it says Welcome Guest with login option, whereas if they login it welcomes them with their name and instead of login is has Previous Orders, View Basket and Logout. I know how to do this to an extent, i know it's alot of if statements anyway, i'm having a problem with sessions, when i experimented i got the Guest part to come up but not the name, and then i got the name to come up but if i tried to enter as a guest it would bring up an index error because there was no $cust variable

 

My Code

 

session_start();
$cust=$_POST['cust_no']; /*from previous login page, text field name is cust_no


if($cust == ''){
   echo "Guest <br>";
   } else {
   
   [access the database and retrieve name (variable $name)]

   echo $name ;
   }

[paul2463]

I am assuming that if you enter as a user the $cust variable will be set and if you enter as a guest it wont - just thought I would point out the assumptions used in the following code

 

if (isset($cust))
{
//pull information from the database and get the name
}
else
{
echo "Guest <br>";
}

 

if you are using $_POST variables then you do not need a SESSION starting

[magnetica]

Try:

 

if(empty($cust)){
  echo "Guest <br />";
  } elseif (!empty($cust)) {
  
  [access the database and retrieve name (variable $name)]

  echo $name ;
  }

 

Same as what you had but cleaner

[magnetica]

if (isset($cust))
{
//pull information from the database and get the name
}
else
{
echo "Guest <br>";
}

 

By the way this If Statement will always return true because the variable $cust is set but might or might not be empty. Hence the use of the

if (empty($cust))

[skali]

if (!empty($_POST['cust_no'])){

//pull information from the database and get the name

}

else{

    echo "Guest <br>";

}

[gazalec]

No but thats wot i mean i need it to be part of a session because it is going to be used on all pages i only had post because its the only way i knew how to get information from the previous form

 

Thanks

[magnetica]

Well on the second page, doo something like this:

 

$cust = $_POST['form_variable'];

 

$_SESSION['session_cust'] = $cust;

[gazalec]

this will probably sound really dumb but wot is the session variable then, $session_cust or just $cust

[paul2463]

you will call the session variable on other pages

 

$_SESSION['session_cust'];

[magnetica]

Right if you want to learn about session and how to store into the session and retrieve from it then check this video out:

 

 

http://www.phpvideotutorials.com/lesson12/

 

Or simply goto Google and search for "sessions and php"

[gazalec]

ok thanks alot