Question

I have array like this :

Array
(
    [attribute] => Array
        (
            [0] => sku
            [1] => sku
            [2] => attribute_set_id
        )

    [value] => Array
        (
            [0] => 1, 2, 3
            [1] => 3, 4
            [2] => 4
        )

)

In the above array attributes are like keys and values are values .I want to concatenate same key values like here required sku will be (1,2,3,4). I can join them by combine array.The result array will be like

array('sku'=>'1,2,3,4',attribute_set_id=>'4'); 

The above array will be dynamic.

Answer 1

I don’t think there is a builtin function to do the job, you have to write the algorithm yourself, something like

$result = array();
foreach ($array['attribute'] as $i => $key)
{
    $value = str_replace(' ', '', $array['value'][$i]);
    if (isset($result[$key]))
        $result[$key] = implode(',', array_unique(array_merge(explode(',', $result[$key]), explode(',', $value))));
    else
        $result[$key] = $value;
}