Problems with array please help !

[nyl]

I have this code:

$_SESSION['productid'][] = $productid;

it gives me this error:

Fatal error: [] operator not supported for strings in......

On my local machine it works fine. On the server it works fine the first time i load the page and then it gives me this error.

Do you know a way to convert a string into an array or disable the error on the server ? may be through a php.ini file ?

I have been wasting 2 days looking for an answer. I'm miserable.

[drew010]

try
array_push($_SESSION['productid'], $productid);
and see what happens.

[nyl]

after adding:

array_push($_SESSION['productid'], $productid); 

I get this error now:

Warning: array_push(): First argument should be an array in.....

[drew010]

maybe try adding

if (!isset($_SESSION['productid'])) {
  $_SESSION['productid'] = array();
}

somewhere near session_start()
then go back to your initial way of doing it.

also be sure to clear your cookies or get rid of the session you currently are using so you can start a fresh one.

[nyl]

it gives me all kind of problems. the info that it spits out are all wrong.
My array was a mutidimensional array like $_SESSION['product_name'][]. I don't see the other brakets in the added code.

i'm desperate. on another page after adding the array_push command it gives me now another error that wasn't there before:

Warning: array_push(): First argument should be an array in.....

if (!isset($_SESSION['product_qty'])) { 
$_SESSION['product_qty'] = array();
}

array_push($_SESSION['product_qty'], $product_qty); 

Is there any way to make it work flawlessly on the server like it works on my machine ? can I change the php.ini file on the server to disable the errors is giving me.

Why it gives me these error on the server and works fine on my end if the code is exactly the same ?

I don't know what to do anymore.

I want the server to work like my machine at home.

thanks very much for your help though.

[drew010]

im not really sure what it is, you could disable the errors but thats not gonna make it work, it just wont tell you its not working.
the
$_SESSION['productid'] = array()
is supposed to initialize that element to an array.

go through the php.ini line by line and check the settings are similar and make sure the php version is up to date.

[phpmavenman]

Took this bit of code from a posting on codewalkers:

<?
function addItem($id, $product, $description, $price, $category, $table, $theQuantity=1)
{
$idArray = Array();
$productArray = Array();
$descriptionArray = Array();
$quantityArray = Array();
$priceArray = Array();
$tableArray = Array();
$currentItem;

if(!$_SESSION["idArray"])
{
array_push($idArray, $id);
array_push($productArray, $product);
array_push($descriptionArray, $description);
array_push($quantityArray, $theQuantity);
array_push($priceArray, $price);
array_push($tableArray, $table);

$_SESSION["idArray"] = $idArray;
$_SESSION["productArray"] = $productArray;
$_SESSION["descriptionArray"] = $descriptionArray;
$_SESSION["quantityArray"] = $quantityArray;
$_SESSION["priceArray"] = $priceArray;
$_SESSION["tableArray"] = $tableArray;
}
else
{
for($i = 0; $i<= sizeOf($_SESSION["idArray"]); $i++)
{
if($_SESSION["idArray"][$i] == $id)
$currentItem = $i;
}
if($_SESSION["idArray"][$currentItem] == $id)//check if id exists; if so, increase quantity
{
connectToDB();
//check that quantity in cart not more than quantity in DB
//therefore, retreive quantity from DB & when adding an item, check that it is not more
$query = mysql_query("SELECT quantity FROM $table WHERE title_id = '$id'");
$row = mysql_fetch_array($query);
$quantity = $row[quantity];
mysql_close();

if($_SESSION["quantityArray"][$currentItem] < $quantity)
$_SESSION["quantityArray"][$currentItem] += $theQuantity;
else
{
?>
<script language="javascript1.2" type="text/javascript">
<!--
alert("You have already added the available quantity of this title.\nThere are no more copies in stock.\n");

//-->
</script>
<?
}
}
else//add the item if it's id doesn't exist
{
array_push($_SESSION["idArray"], $id);
array_push($_SESSION["productArray"], $product);
array_push($_SESSION["descriptionArray"], $description);
array_push($_SESSION["quantityArray"], $theQuantity);
array_push($_SESSION["priceArray"], $price);
array_push($_SESSION["tableArray"], $table);
}
}
}

[nyl]

I found this comment on the ZEND site:

what does it mean ?

It's like this the variable is going to either be a
string or an array, not both.

When you load the page the first time the var
is undefined, so when you call it to be an empty
array there's no problem.

When you load the page again it now has a
string value of some kind. All you have to do is
reset the variable just before you call it to the
array.

assign NULL to the variable, or try using empty
();

[drew010]

if you set it to null, it will erase whatever it contains already. im guessing you are trying to use an array because you want to store multiple product ids in that index.

try a really simple script like this:

<?php

$arr['idx'][] = "abc";
$arr['idx'][] = "def";
$arr['idx'][] = "ghi";

?>

and see what happens.

[nyl]

yes, i have a shopping cart and each time a customer add a new products, i store it in:

$_SESSION['product_qty'][] = $_GET['product_qty'];
$_SESSION['productid'][] = $productid;
$_SESSION['product_pict'][] = $product_pict;
$_SESSION['product_name'][] = $product_name;
$_SESSION['product_category'][] = $product_category;
$_SESSION['product_minidescription'][] = $product_minidescription;
$_SESSION['product_description'][] = $product_description;
$_SESSION['product_weight'][] = $product_weight;
$_SESSION['product_shippingcharge'][] = $product_shippingcharge;
$_SESSION['product_price'][] = $product_price;

so when i have to show the cart I go through the size of this multidimensional array that the customer built adding products to the cart.