PHP Replacing Array Value

Question

Im creating an array of products, each with an ID and score:

$savedProducts = array( 'product' => array("product_id" => $product_id,"product_score" => $score));

I want to be able to update the score by using the product_id as identifier.

I've tried:

foreach($savedProducts as $key => $val)
{

    if ($val == $property_id )
    {                   
        $savedProducts[$key] = $score;
        break;
    }
}

Which keeps adding a new array item, rather than updating the original.

I think the issue is that my initial array setup then doesn't match the edited one.

Initial array:

Array
(
    [product] => Array
        (
            [product_id] => 125026
            [product_score] => 5
        )

)

After trying to update score:

Array
(
    [0] => Array
        (
            [product] => Array
                (
                    [product_id] => 125026
                    [product_score] => 4
                )

        )

    [1] => Array
        (
            [0] => Array
                (
                    [product] => Array
                        (
                            [product_id] => 125026
                            [product_score] => 4
                        )

                )

        )

)

So it keeps addding elements, rather than updating the existing.

With this array structure you can only have one 'product' because new added entries will override the key?! Or is 'product' just a placeholder for something else? — Tobias Golbs
– Tobias Golbs, Commented Mar 5, 2014 at 15:12
You seem to have a savedProducts and a savedProperties, I presume they should be the same. Which would make changing your array a lot easier :-) — vogomatix
– vogomatix, Commented Mar 5, 2014 at 15:16

Robin Webdev · Accepted Answer · 2014-03-05 15:18:02Z

1

with PHP 5.5 use:

$savedProducts = array_column($savedProducts, NULL, 'product_id');

then you can access your product with:

$savedProducts[$product_id]

answered Mar 5, 2014 at 15:18

Robin Webdev

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2 Comments

BobFlemming Over a year ago

Notice: Undefined offset: 125026 (where the number is my product_id) , thats on PHP5.5.7

Robin Webdev Over a year ago

can you print_r your $savedProducts and append it to your question

Andolasoft Inc · Accepted Answer · 2014-03-05 15:22:55Z

0

Please try this

foreach($savedProducts as $key => $val)
{
if($val['product_id'] == $property_id)
{                   
    $savedProperties[$key]['product_score'] = $score;
    break;
}
}

edited Mar 5, 2014 at 15:22

answered Mar 5, 2014 at 15:17

Andolasoft Inc

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1 Comment

BobFlemming Over a year ago

I then get Notice: Undefined index: product_id

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