[SOLVED] Quick Question

[rn14]

This is where create a new object and pass values to it. I know it fills this with values as when i print out the values on this page they display.

 

include('class.php');

$order = new Order();
$meallist = array();
foreach ($_REQUEST as $k=>$v) { if ($k=="meal") { $meallist = $v; } }
$order->Test($meallist); 

 

My problem occurs when i attempt to print these values out on a different page using the following code:

 

<?
include('class.php');
$array = $order->getData();
$meal1 = $array[0];
$meal2 = $array[1];
$meal3 = $array[2];
$meal4 = $array[3];
$meal5 = $array[4];
$meal6 = $array[5];
$meal7 = $array[6];

?>

I get this error:

Fatal error: Call to a member function getData() on a non-object.

 

Could anyone help?

 

 

Thanks

[rhodesa]

Values in an object don't stay from page to page. Just like all other variables, the value of $order only exists for the lifetime of that script. To keep values from page to page, you need to store them in the SESSION

[rn14]

Thanks, if i then have a number of objects and put all of them into sessions is it possible to retrieve these on one page? Or will I have to insert the sessions into a db?

[rhodesa]

You can save objects into the SESSION array, and then retrieve them on other pages just like you would any other variable. The only thing to remember is you need to load all of your classes (if you don't have an autoloader) before you call session_start().

[revraz]

Also know that if the browser is closed, the session info is destroyed.

[rn14]

if these are two objects that i have in sesssions how will I add them to the session array??

 

if these are two objects that i have in sessions below How will I add them to the session array?

session_start();
include('class.php');

if (isset($_SESSION['order'])) {
      $order = unserialize($_SESSION['order']);
}else {
   $order = new Order();
}
// incase we want to reset our test data.
if ($_REQUEST['reset'] == "ok") {
   $order = new Order();
}
$meallist = array();
foreach ($_REQUEST as $k=>$v) { if ($k=="meal") { $meallist = $v; } }
$order->Test($meallist); //changed this to reference index of 0.
$_SESSION['order'] = serialize($order);
?>

<?
//order +1
if (isset($_SESSION['orderp2'])) {
      $orderp2 = unserialize($_SESSION['orderp2']);
}else {
   $orderp2 = new Order();
}
// incase we want to reset our test data.
if ($_REQUEST['reset'] == "ok") {
   $orderp2 = new Order();
}
$meallist = array();
foreach ($_REQUEST as $k=>$v) { if ($k=="meal2") { $meallist = $v; } }
$orderp2->Test($meallist); //changed this to reference index of 0.
$_SESSION['orderp2'] = serialize($orderp2);
?>
[code]

Thanks

[rhodesa]

that is the code for 2 separate files right?

 

<?php
session_start();
include('class.php');

if (isset($_SESSION['order'])) {
   $order = $_SESSION['order'];
}else {
   $order = new Order();
}
// incase we want to reset our test data.
if ($_REQUEST['reset'] == "ok") {
   $order = new Order();
}
$meallist = array();
foreach ($_REQUEST as $k=>$v) { if ($k=="meal") { $meallist = $v; } }
$order->Test($meallist); //changed this to reference index of 0.
$_SESSION['order'] = $order;
?>

 

<?php
session_start();
include('class.php');

//order +1
if (isset($_SESSION['orderp2'])) {
   $orderp2 = $_SESSION['orderp2'];
}else {
   $orderp2 = new Order();
}
// incase we want to reset our test data.
if ($_REQUEST['reset'] == "ok") {
   $orderp2 = new Order();
}
$meallist = array();
foreach ($_REQUEST as $k=>$v) { if ($k=="meal2") { $meallist = $v; } }
$orderp2->Test($meallist); //changed this to reference index of 0.
$_SESSION['orderp2'] = $orderp2;
?>

[rn14]

They are both seperate and they are coming from different pages. Does this mean I will have to insert them into db??

[rhodesa]

no...would you like both scripts to use the same object? right now, one uses $_SESSION['order'] and the other uses $_SESSION['orderp2']. If you want them to share, have them use the same array key (aka, both use $_SESSION['order'])

[rn14]

Im fairly new to this so this might be stupid but can I put the two objects in one session? Did you mean use one one object but I amcollecting different data from multiple pages?

[rhodesa]

the SESSION is shared across the entire visit for a particular user. So, when the user navigates from page to page, the info in SESSION can be written to/read from. If, on page1.php, you store a value into $_SESSION['order'], then on page2.php you can read the value from $_SESSION['order'].

 

Does that make more sense?

[rn14]

Yes thanks, does that mean that if I have multiple objects of order they can all be retrieved from the one session called order?

[rhodesa]

If you want different instances of the order object, keep them in different parts of the session.

 

$_SESSION['ordera'] = new Order();
$_SESSION['orderb'] = new Order();
$_SESSION['orderc'] = new Order();

[rn14]

Thanks for your help here. Got this working now.