Remove “columns” from the subarrays of a two dimensional array

Question

I have a simple, two dimensional array like this:

Array
    (
        [0] => Array
            (
                [0] => abc
                [1] => 1         


        

Answer 1

foreach($array as $key=> $element)
{
    for($i=0; $i<$n; $i++)
    {
        $newArray[$key][$i] = $element[$i];
    }
}

Not sure if there is a more efficient method.