php Coding challenge

[marlon4417]

Maybe not really a challenge for most but being a newbie, this one is sort of tricky.

I am running sessions to move variables from one page to another.

<?php
session_start();
$saved =$_SESSION['get_id'];

further on in the script, I echo these variables:

<?php echo "$saved";?>

My question (which probably involves an if statement):

If $saved has a value (in other words, in the previous form, if the this field contains text), I would like to assign a number to it, say 35. I would then assign numbers to the other passed variables and at the bottom of the script I would like to have a grand total where these numbers are added if they are true. For example, if player1 and player2 are entered (and each player is 35), the grand total should be 70.

I really would appreciate your help. I am in the final stages of this form for our soccer league registration (www.essexredevelopment.com/mtlx.php). The scripts abover are going to be posted on the gotopay.php page.

Marlon

[victorb17]

I hope I understand this right:

to check if there is something in the variable, you could do one of the following:

if($saved)
{
//there is something in $saved
}

or

if($saved != '')
{
//there is someting in $saved
}

or

if(strlen($saved) != 0)
{
//there is something in $saved
}

now if you want to assign other variables based on if $saved has something in it you could do something like this:

if($saved)
{
//there is something in $saved
$var=1;
}

if($var)
{
//assign other variables because $saved had something in it.
}

hope that helps! Let me know if it is not what you meant.

[marlon4417]

Victor,

You made my day....wish I could reimburse you for this ...paypal?? How much??

Let me know....

Originally posted by victorb17
I hope I understand this right:

to check if there is something in the variable, you could do one of the following:

if($saved)
{
//there is something in $saved
}

or

if($saved != '')
{
//there is someting in $saved
}

or

if(strlen($saved) != 0)
{
//there is something in $saved
}

now if you want to assign other variables based on if $saved has something in it you could do something like this:

if($saved)
{
//there is something in $saved
$var=1;
}

if($var)
{
//assign other variables because $saved had something in it.
}

hope that helps! Let me know if it is not what you meant.

[LordShryku]

It should be mentioned that php will throw an error type of E_NOTICE if the variable doesn't actually exist. While you really don't need to make a new variable at all, you should be doing the check at the top when you set the variable.

BTW, look up [man]isset[/man] and [man]empty[/man] since if($var) will throw the error.

if(empty($_SESSION['get_id']))
   $saved = NULL; # just set a default
else
   $saved = $_SESSION['get_id'];

[marlon4417]

I've gotten this to work without any issues. Hearty thanks to all for participating (the $bring_X have been defined):

<?php if($bring_player1)
$bring_player1=36;

  if ($bring_player2)
  $bring_player2=36;

  if ($bring_player3)
  $bring_player3=36;

  if ($bring_player4)
  $bring_player4=36;

  if ($bring_spons)
  $bring_spons=160;

  $total=$bring_player1+ $bring_player2+ $bring_player3+ $bring_player4+ $bring_spons ;
    ?>
  <b> Grand total:    $ <?php echo $total ?></b>

[victorb17]

marlon4417, don't worry about payment (thanks though!), that's what these forums are for! Glad it's workin