Is it possible to merge these arrays in PHP?

Question

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PHP: Merge 2 Multidimensional Arrays

I have these arrays and I want to merge them into one array.

$arrayAAA[0]['name'] = "stackoverflow";
$arrayBBB[0]['color'] = "white";
$arrayCCC[0]['media'] = "web";

I want to merge these like this.

$newArray[0]['name'] //"stackoverflow"
$newArray[0]['color'] //"white"
$newArray[0]['media'] //"web"

If anyone knows how to do this, please give me a help. I thought I could merge them by using array_merge(), but this function doesn't work in my case.

Thanks so much in advance!

sorry! I meant array_merge(). I tried this function but this didn't give me the result I want. — crzyonez777, Dec 19 '12 at 01:12

Shiplu Mokaddim · Answer 1 · 2012-12-19T01:25:10.427

6

I dont know how much time you have wasted finding the solution while you could have written a manual one.

foreach(array($arrayAAA, $arrayBBB, $arrayCCC) as $v){
    foreach($v as $iv){
        $result[key($iv)] = $iv[key($iv)];
    }
}

CodePad

edited Dec 19 '12 at 01:25

answered Dec 19 '12 at 01:19

Shiplu Mokaddim

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score 4 · Answer 2 · answered Dec 19 '12 at 00:56

4

I think you want to use array_merge(), not merge_array()

answered Dec 19 '12 at 00:56

Sterling Archer

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`array_merge()` won't give that result exactly. – Michael Berkowski Dec 19 '12 at 00:59
It doesn't work with multi-dimensional arrays? – Sterling Archer Dec 19 '12 at 01:00
It does, but won't produce that result. It will add keys for each sub-array like `Array([0] => Array ([name] => stackoverflow) [1] => Array([color] => white) [2] => Array([media] => web))` In the OP's example, all the keys are members of the `[0]` array. – Michael Berkowski Dec 19 '12 at 01:03
Ohhhh, that's interesting then. My apologies for the incorrect answer – Sterling Archer Dec 19 '12 at 01:04
sorry! I meant array_merge(). I tried this function but this didn't give me the result I want. – crzyonez777 Dec 19 '12 at 01:14

score 3 · Accepted Answer · edited Dec 19 '12 at 01:28

3

So, this does not work either?

$x = array();
$x[0] = array_merge($arrayA[0], $arrayB[0], ...);

There is also array_merge_recursive function. But I am pretty sure it would only append each sub-array.

edited Dec 19 '12 at 01:28

Shiplu Mokaddim

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answered Dec 19 '12 at 01:15

dualed

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what if `$arrayAAA` contains more than one element? – Shiplu Mokaddim Dec 19 '12 at 01:22
@shiplu.mokadd.im well then that additional element will be ignored – dualed Dec 19 '12 at 01:23
actually, $arrayAAA has 40 element. $arrayAAA[0]['key'] ~ $arrayAAA[40]['key'] – crzyonez777 Dec 19 '12 at 01:25
@crzyonez777 you should have mentioned that then ;) – dualed Dec 19 '12 at 01:25
@dualed sorry about that. but your advice worked perfectly for my case. – crzyonez777 Dec 19 '12 at 01:31

score 2 · Answer 4 · answered Dec 19 '12 at 01:23

For more complex arrays this should work, but seems like there should be an easier way.

$arrayAAA[0]['name'] = "stackoverflow";
$arrayBBB[0]['color'] = "white";
$arrayCCC[0]['media'] = "web";

function merge_arrays(){
    $aArgs = func_get_args();

    $aReturn = array();
    if($aArgs != array()){
        foreach($aArgs as $aArr){
            foreach($aArr as $mKey => $aSub){
                if(!isset($aReturn[$mKey])){
                    $aReturn[$mKey] = array();
                }

                foreach($aSub as $mSubKey => $mVal){
                    $aReturn[$mKey][$mSubKey] = $mVal;
                }
            }
        }   
    }

    return $aReturn;
}

$newArray = merge_arrays($arrayAAA, $arrayBBB, $arrayCCC);

Is it possible to merge these arrays in PHP?

4 Answers4