Push elements from a flat array into an object array by related index

Question

I have two arrays like below:

array 1:

array([0]=> 11, [1] => 2.5)

array 2:

Array ( 
    [0] => stdClass Object ( 
        [type] => 1 
        [creator_id] => 3 
        [creator_name] => E1 
        [per_tar] => 300 
        [pro_tar] => 200 
        [ac] => 300 
        [PA] => 17 
        [Q1] => 800 
    ) 
    [1] => stdClass Object ( 
        [type] => 1 
        [creator_id] => 4 
        [creator_name] => E2 
        [per_tar] => 100 
        [pro_tar] => 170 
        [ac] => 0 
        [PA] => 7 
        [Q1] => 270 
    ) 
)

I want is to merge the first array with the second array with the following logic:

Array 1 key [0] is merged inside array 2 key [0] object, and so on in the same fashion for all keys.

So my expected output is:

Array ( 
    [0] => stdClass Object ( 
        [type] => 1 
        [creator_id] => 3 
        [creator_name] => E1 
        [per_tar] => 300 
        [pro_tar] => 200 
        [ac] => 300 
        [PA] => 17 
        [Q1] => 800
        [new] => 11 
    ) 
    [1] => stdClass Object ( 
        [type] => 1 
        [creator_id] => 4 
        [creator_name] => E2 
        [per_tar] => 100 
        [pro_tar] => 170 
        [ac] => 0 
        [PA] => 7 
        [Q1] => 270
        [new] => 2.5 
    ) 
)

I am trying the array_merge() function, but it's incorrectly merging both arrays into a four-element array.

i am getting this error array_merge(): Argument #1 is not an array — Nisanth
– Nisanth, Commented Feb 24, 2017 at 8:49
array-object has the method toArray(). If you have ArrayObjects nested inside the ArrayObject I am afraid this will not work, as toArray() does not recurse. You would need to solve this with a custom method. — fragmentedreality
– fragmentedreality, Commented Feb 24, 2017 at 9:02

Naincy · Accepted Answer · 2017-02-24 09:05:21Z

2

$res = [];
foreach($array1 as $key => $val){
    // before merging convert object to array
    $arr = is_object($array2[$key]) ? (array)$array2[$key] : $array2[$key];  
    $res[$key] = array_merge($array1[$key], $arr);
}

print_r($res);

answered Feb 24, 2017 at 9:05

Naincy

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Comments

Mohammad · Accepted Answer · 2017-02-24 09:11:52Z

2

You should iterate $array1 items and insert value of every item into relevant index of $array2.

foreach ($array1 as $key=>$value){
    $array2[$key]->new = $value;
}

See result in demo

Also if you want to remain array2, copy value of it in new variable like $newArray.

$newArray = $array2;
foreach ($array1 as $key=>$value){
    $newArray[$key]->new = $value;
}

edited Feb 24, 2017 at 9:11

answered Feb 24, 2017 at 9:06

Mohammad

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2 Comments

Nisanth Over a year ago

i have an doubt. if my array 2 have 1 key means i am getting Creating default object from empty value error how to solve this

Mohammad Over a year ago

@Nisanth You should check if target index exist in $array2 then set new property in it. See 3v4l.org/GPRPV

Haring10 · Accepted Answer · 2017-02-24 09:00:20Z

-1

Best bet would be to convert the stdClass object to an array then just use array_merge.

convert the stdClass object to an array like so:

$array = json_decode(json_encode($object), true);

answered Feb 24, 2017 at 9:00

Haring10

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1 Comment

Bevelopper Over a year ago

What's wrong with $array = (array) $object;

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