In testing code to learn how arrays work when stored to session variables I have made the following stored arrays:
$id=17; //product #17
$_SESSION['cart']['items'][$id]=array(
'quantity'=>1,
'SKUNumber'=>'GL335-a',
'Name'=>'Widget',
'UnitPrice'=>14.95
);
$id=25;
$_SESSION['cart']['items'][$id]=array(
'quantity'=>3,
'SKUNumber'=>'GL398-c',
'Name'=>'Mega-Widget',
'UnitPrice'=>34.95
);
$id=19;
$_SESSION['cart']['items'][$id]=array(
'quantity'=>1,
'SKUNumber'=>'GL335-a',
'Name'=>'Widget',
'UnitPrice'=>14.95
);
I am confused on how to loop through the Key > Values at the ITEM level:
foreach($_SESSION['cart']['items'][25] as $key=>$value) // echo/loop all stored vaules in the item 25 array in session cart
{
// and print out the values
echo $key." | ".$value."<br />";
}
correctly produces 1 occurrence of the array stored in item 25:
But, when i remove the [25] from the code, i get: 17 | Array, 25 | Array, 13 | Array and a warning: "Notice: Array to string conversion in..."
What I want to produce is:
quantity: 1 | SKUNumber: GL335-a |Name: Widget |UnitPrice: 14.95
quantity: 3 | SKUNumber: GL398-c |Name: Mega-Widget |UnitPrice: 34.95
quantity: 1 | SKUNumber: GL378-b |Name: Super Widget |UnitPrice: 29.95
I'm obviously looping through the result set in a wrong way but not sure the correct way to loop through it to get the result I'm looking for. Thanks for any help.
<?php
foreach($_SESSION['cart']['items'] as $arr)
{
echo "quantity: $arr['quantity'] | SKUNumber: $arr['SKUNumber']: GL378-b | Name: $arr['Name'] | UnitPrice: $arr['UnitPrice']";
}
About Notice: Array to string conversion in, you're going to print out $value which is an array not a string so that's why you get that notice.
You should iterate over your array with another foreach loop or you can go with the my snippet.
try...
foreach($_SESSION['cart']['items'] as $id=>$arr) {
foreach ($arr as $key => $value) {
echo $key.":" .$value." | ";
}
echo "<br />";
}
OR
foreach($_SESSION['cart']['items'] as $id=>$arr) {
echo "quantity: $arr['quantity'] | SKUNumber: $arr['SKUNumber'] | Name: $arr['Name'] | UnitPrice: $arr['UnitPrice'] <br />";
}
You're trying to serialize an Array by echoing the value, thats why you get the warning and the unexpected result. Try handling the $value as an array instead of just echoing it. Or looping inside the $value