How to convert an array to a simpler form using php function

Question

Currently I am having an array like this

$myAllProducts= array(
           0=> array(
               'productName' => "Classmate",
               'productId' => 2
           ),
            1=>array(
                'productName' => "tata",
               'productId' => 3
            ),
            2=>array(
                'productName' => "abcd",
               'productId' => 4
            ),
            1=>array(
                'productName' => "pen",
               'productId' => 7
            ),
        )

And I want to convert it to an array like

array('Classmate'=>2,
'tata'=>3,
'abcd'=>4,
'pen'=>7)

I am doing it like this

$productList=array();
foreach($myAllProducts as $record)
            {
                $productsList[$record['productName']]=$record['productId'];
            }

Question:- Although I am successfully getting the desired result using my loop but I want to know if it could be done using any built in function or in a much better way?

Mark Baker · Accepted Answer · 2014-01-04 10:51:26Z

5

If you're using PHP >= 5.5, then you can use the new array_column() function

$productList = array_combine(
    array_column(
        $myAllProducts,
        'productName'
    ),
    array_column(
        $myAllProducts,
        'productId'
    )
);

or (even simpler)

$productList = array_column(
    $myAllProducts, 
    'productId', 
    'productName'
);

answered Jan 4, 2014 at 10:51

Mark Baker

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3 Comments

Let me see Over a year ago

sorry but i am using 5.3 :(

Mark Baker Over a year ago

There's a userland implementation of array_column() available at benramsey.com/blog/2013/07/… which would work with earlier versions than 5.5 - but your simple loop is the easiest way of doing it before array_column() was introduced into PHP core

Let me see Over a year ago

thanks for letting me know about array_column() sir.

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