New to php / quick question

[Mordero]

I am taking a php class in college as an elective...I have an assignment to take four numeric inputs from the user, assign them to
session variables, echo them out on a new page within a table.  What I can't figure out is how to keep the amounts from resetting..I need for the user to be able to "add more to cart" so to speak.  here is the code.

INPUT FIELDS (fruity.php)

<h1>Welcome to the Client & Server Side Fruit Store</h1>
<div id="fixedcontainer">

<form action="fruitbasket.php" method="post">

<div class="fruit"><img src="bananas.jpg" alt="bananas mon!" />
<p>Qty: <input type="text" size="2" maxlength="2"  name="banana" id="banana" /></p></div>

<div class="fruit"><img src="apples.jpg" alt="apples mon!" />
<p>Qty: <input type="text" size="2" maxlength="2" name="apple" id="apple" /></p></div>

<div class="fruit"><img src="papaya.jpg" alt="papayas mon!" />
<p>Qty: <input type="text" size="2" maxlength="2" name="papaya" id="papaya" /></p></div>

<div class="fruit"><img src="pineapple.jpg" alt="pineapples mon!" />
<p>Qty: <input type="text" size="2" maxlength="2" name="pineapple" id="pineapple" /></p></div>

<input type="submit" value="Add to Fruitbasket" name="fruitsub" />
</form>
</div>


FRUITBASKET.php (this is where I need to keep track of the number of fruits they want..has to be updated if they select continue shopping)

<?php
session_start();

$getbanana=$_POST['banana'];
$getapple=$_POST['apple'];
$getpapaya=$_POST['papaya'];
$getpineapple=$_POST['pineapple'];


$_SESSION['totbananas'] = $getbanana;
$_SESSION['totapples'] = $getapple;
$_SESSION['totpapayas'] = $getpapaya;
$_SESSION['totpineapples'] = $getpineapple;


echo "<table border='1'>";
echo "<tr>";
echo "<td>Bananas</td><td>Qty=</td><td>" . $_SESSION['totbananas'] . "</td>";
echo "</tr>";
echo "<tr>";
echo "<td>Apples</td><td>Qty=</td><td>" . $_SESSION['totapples'] . "</td>";
echo "</tr>";
echo "<tr>";
echo "<td>Papayas</td><td>Qty=</td><td>" . $_SESSION['totpapayas'] . "</td>";
echo "</tr>";
echo "<tr>";
echo "<td>Pineapples</td><td>Qty=</td><td>" . $_SESSION['totpineapples'] . "</td>";
echo "</tr>";
echo "</table";



?>
<a href="fruity.php">Continue Shopping</a>
</body>
</html>


--------I'm not trying to be a hardcore php programmer, I'm just trying to make it through this class...any help would be greatly appreciated! I know i know, i'm a n00b ; (

[keeB]

what you need to do is use

[code=php:0]
if(isset($_SESSION['totbananas'])) {
$temp = $_SESSION['totbananas'];
$_SESSION['totbananas'] = $getbanana + $temp;
}[/code]

:) I would write a function for it personally, but if you don't want to be 'hardcore', why? :)

[Mordero]

thanks for the quick reply. I'm guessing the if(isset($_SESSION['totbananas'])) statement should go in the fruitbasket.php correct? 

When I do that my amount is getting doubled...i enjoyed javascript so much more...

[Caesar]

[quote author=Mordero link=topic=117036.msg477238#msg477238 date=1165008104]i enjoyed javascript so much more...
[/quote]

Heresy.

[Mordero]

can someone please let me know what i'm doing wrong?  I know it is something simple but I just can't figure it out.  Oh, I don't like javascript anymore than php..its just that I could get javascript to work....please help!

[Mordero]

bump

[Caesar]

This might point you in the right direction:

[code]<?php
  session_start();

  if(isset($_POST['submit'])) {

  $banana = $_POST['banana'];
  $apple = $_POST['apple'];
  $papaya = $_POST['papaya'];
  $pineapple = $_POST['pineapple'];

  $_SESSION['totbananas'] = $banana_sess;
  $_SESSION['totapples'] = $apple_sess;
  $_SESSION['totpapayas'] = $papaya_sess;
  $_SESSION['totpineapples'] = $pineapple_sess;

  addfruit();

  echo"
  <table align=\"center\">
  <tr><td>Bananas = </td><td>$_SESSION['totbananas']</td></tr>
  <tr><td>Bananas = </td><td>$_SESSION['totapples']</td></tr>
  <tr><td>Bananas = </td><td>$_SESSION['totpapayas']</td></tr>
  <tr><td>Bananas = </td><td>$_SESSION['totpineapples']</td></tr>
  </table>";

  }

    function addfruit() {
   
    $_SESSION['totbananas'] = ($bananas + $banana_sess);
    $_SESSION['totapples'] = ($apples + $apple_sess);
    $_SESSION['totpapayas'] = ($papaya + papaya_sess);
    $_SESSION['totpineapples'] = ($pineapples + $pineapple_sess);

    }

?>[/code]

And yes...those values will reset if the user closes their browser. I suggest using cookies if you'd like it to keep those values if they accidently close their browser.