[SOLVED] sorting this array like this:

[king.oslo]

I have an array, it contains information about the prices of each product in a shopping cart. It looks like this:

 

Array
(
    [0] => Array
        (
            [product_id] => 10001
            [price] => 335
        )

    [1] => Array
        (
            [product_id] => 10004
            [price] => 390
        )

    [2] => Array
        (
            [product_id => 10003
            [price] => 290
        )

    [3] => Array
        (
            [product_id] => 10002
            [price] => 285
        )

)

 

 

I would like to sort this array, so that the product_id with the lowest value comes first, without changing the keys of the lowest level array, while maintaining the keys for the top level array so that it looks like this:

 

Array
(
    [0] => Array
        (
            [product_id] => 10001
            [price] => 335
        )

    [1] => Array
        (
            [product_id] => 10002
            [price] => 285
        )

    [2] => Array
        (
            [product_id => 10003
            [price] => 290
        )

    [3] => Array
        (
            [product_id] => 10004
            [price] => 390
        )

)

.

 

How can I do that with a php function?

 

Thanks

 

Marius

 

 

 

[Daniel0]

usort

 

If you get the info from a database, it would be better to sort it using the query though.

[fnairb]

I think "Example #3 Sorting database results" under array_multisort() is what you are after http://us.php.net/manual/en/function.array-multisort.php.