PHP multidimensional array key value [closed]

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I am working with multidimensional arrays; I use the arsort function to get the array that has been added the latest. This all works fine

arsort($this->shoppingBag);
$this->productToShow = key($this->shoppingBag);

When i want to use this array i do:

$prodName = key($this->shoppingBag[$this->productToShow]);

this gives me the correct product with the correct name that I need. When i do

$count = $this->shoppingBag[$this->productToShow[$prodName]];

It gives me an "Undefined index" error.

When I echo the array with the key as a string i get the correct value from that array..

Why is this and how can I get the value with that key?

edit:

array(4) 
{
    [38] => array(1) 
    {
        ["SAMSUNG LE32D450"] => int(3)
    }
    [32] => array(1) 
    {
        ["Inspiron 15R"] => int(1)
    }
    [29] => array(1) 
    {
        ["XPS 15"] => int(25)
    }
    [37] => array(1) 
    {
        ["Logitech M185 Black"] => int(10)
    }
}

Can you include a sample of the multi-dimensional array data? — Pastor Bones
– Pastor Bones, Commented Nov 30, 2011 at 18:13
Check my most recent edit. I am pretty sure that should work. — Laurence Burke
– Laurence Burke, Commented Nov 30, 2011 at 18:24

Laurence Burke · Accepted Answer · 2011-11-30 18:22:15Z

1

Is this as simple as $this->productToShow is just a key variable and not an array. So the call to an index of that variable is undefined. Then wouldn't the answer you are looking for be $count = $this->shoppingBag[$this->productToShow][$prodName];.

edited Nov 30, 2011 at 18:22

answered Nov 30, 2011 at 18:16

Laurence Burke

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2 Comments

kendepelchin Over a year ago

$this->productToShow = key($this->shoppingBag);

kendepelchin Over a year ago

that worked. thanks seems to be as simple indeed, I think i'm doing way to much time working with those arrays today. thanks for the help.

Brian Fisher · Accepted Answer · 2011-11-30 18:22:05Z

0

Try:

$count = $this->shoppingBag[$this->productToShow];

answered Nov 30, 2011 at 18:22

Brian Fisher

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1 Comment

Brian Fisher Over a year ago

Is the count one of the variables in the array? Or is the count the number of elements in the array?

Chris C · Accepted Answer · 2011-11-30 18:30:08Z

0

$this->productToShow is not an array. So seeing as $prodName is the key of a particular item in $this->shoppingBag,

I am assuming that you want $count to return the last key Because if we omitted the incorrectly applied [$prodName] to the $this->productToShow key, $count will return the value of the last key in the shopping bag.

answered Nov 30, 2011 at 18:30

Chris C

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