Question

I have an array like this..

Array
(
    [0] => Array
    (
        [0] => 1``
        [1] => 2``
        [2] => 3``
    )

    [1] => Array
    (
        [0] => 4``
        [1] => 5``
        [2] => 6``
    )

    [2] => Array
    (
        [0] => 
        [1] => 7``
        [2] => 
    )
)

I want the result like this below,

$remaining_value =  Array
(
    [0] => 1`` 4``, 
    [1] => 2`` 5`` 7``,
    [2] => 3`` 6``,
)

How to do this in an single loop.. Plz help me..

Answer 1

If the lower-level arrays will always have the same number of elements then you can do something like this:

$subArrayCount = count( $inputArray );
$outputArray = array();
$firstSubArray = reset( $inputArray );
foreach( $firstSubArray as $key => $value )
{
    $outputArray[$key] = $value;
    for( $innerLoop = 1; $innerLoop < $subArrayCount; $innerLoop++ )
    {
        $outputArray[$key].= $inputArray[$innerLoop][$key];
    }
}

var_dump( $outputArray );