Append data from one subarray to another subarray

Question

I have some issue to re-arrange array in php.

Array
(
    [N] => Array
        (
            [68] => sssssss ttttttt
            [69] => uuuuuu vvvvvvvv
        )

    [D] => Array
        (
            [05] => zzzzzzzz zzzzzzzz
            [07] => tttttttttttt ttttttttttt
        )

    [P] => Array
        (
            [88] => yyyyyyy zzzzzzzz
        )

    [C] => Array
        (
            [04] => wwwwww wwwwwww
            [06] => iiiiiii iiiiiiii
            [41] => zzzzzzzzzz zzzzzzzzzz
        )

)

What I want is the following...

Array
(
    [N] => Array
        (
            [68] => sssssss ttttttt
            [69] => uuuuuu vvvvvvvv
            // only C are added here with N
            [04] => wwwwww wwwwwww
            [06] => iiiiiii iiiiiiii
            [41] => zzzzzzzzzz zzzzzzzzzz

        )

    [D] => Array
        (
            [05] => zzzzzzzz zzzzzzzz
            [07] => tttttttttttt ttttttttttt
        )

    [P] => Array
        (
            [88] => yyyyyyy zzzzzzzz
        )

    [C] => Array
        (
            [04] => wwwwww wwwwwww
            [06] => iiiiiii iiiiiiii
            [41] => zzzzzzzzzz zzzzzzzzzz
        )
)

I need the C-Element to be added to N, while all the remaining stay as they are, including the C itself.

How do I accomplish that?

Ja͢ck · Accepted Answer · 2013-07-20 14:02:07Z

2

Pretty straightforward stuff; just add the two arrays together like this:

// add C to N
$arr['N'] += $arr['C'];

If you don't know what the key names are and you just want to target the first and last item:

reset($arr); $first = key($arr);
end($arr); $last = key($arr);

$arr[$first] += $arr[$last];

edited Jul 20, 2013 at 14:02

answered Jul 20, 2013 at 3:57

Ja͢ck

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4 Comments

Mr Internet Over a year ago

It is not really problem, but what it output is just the first-array added together N+C...but not loop through it...any way i learn some thing from your code...Thanks.

Ja͢ck Over a year ago

@MrInternet I'm afraid I don't follow; print_r($arr) should give exactly what you want as can be seen here.

Mr Internet Over a year ago

No really, print_r gives only the sum of $arr['N'] += $arr['C']; But what about the others? like ['D'] ['P']? they are not included.

Ja͢ck Over a year ago

@MrInternet Wait, did you do print_r($arr['N'] += $arr['C']);? Check the earlier codepad link I sent you.

denvdancsk · Accepted Answer · 2013-07-20 03:59:42Z

1

This is actually very simple. All you need to do is loop through the last array and add those key value pairs to the first. Here you go:

    //---- $mainArray is your array.


foreach ($mainArray['C'] as $key => $value)
{
      $mainArray['N'][$key] = $value;
}

print_r($mainArray);

edited Jul 20, 2013 at 3:59

answered Jul 20, 2013 at 3:53

denvdancsk

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Comments

searsaw · Accepted Answer · 2013-07-20 02:53:22Z

0

Try this:

$last_array = $main_array[count($main_array) - 1];
$new_array = array_merge($main_array[0], $last_array);
array_shift($main_array);
array_unshift($main_array, $new_array);
var_dump($main_array);

edited Jul 20, 2013 at 2:53

answered Jul 20, 2013 at 2:22

searsaw

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6 Comments

Mr Internet Over a year ago

Thanks for your quick reply, and put my code in very clear format, But unfortunately the code above seems not working, No out put (empty), but i am trying in different approach, may be some other idea?

Mr Internet Over a year ago

array (size=4) 0 => null 'D' => array (size=2) 16 => string 'BENCHABLA BENCHABLA' (length=19) 17 => string 'BOULOUDINATS BOULOUDINATS' (length=25) 'P' => array (size=1) 14 => string 'AGAR AGAR' (length=9) 'C' => array (size=1) 13 => string 'ACHAR Sababa' (length=12)

searsaw Over a year ago

The only problem I'm still having is the merge is resetting the key values. Is that an issue?

Mr Internet Over a year ago

yes, I think so....I mean merge doesn't seems working, as you see the output i post...the first value [0] become Null...some other way please? I am trying too here..

Mr Internet Over a year ago

by the way, to get the last array key we can use this $last_array = end($main_array);

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