Array inside array or nested array - php

Question

I have an array like below: all the values I am getting one array only, but I don't want this way. This is the best way to do so, in php or jQuery both languages are ok for me
Array
(
[0] => Array
(
[val] => facebook
)
[1] => Array
(
[val] => snapchat
)
[2] => Array
(
[val] => instagram
)
[3] => Array
(
[expenses] => 986532
)
[4] => Array
(
[expenses] => 45456
)
[5] => Array
(
[expenses] => 56230
)
[6] => Array
(
[social_id] => 15
)
[7] => Array
(
[social_id] => 16
)
[8] => Array
(
[social_id] => 17
)
)
and I want to output like this..
$result = array(
array(
"val" => "Facebook",
"expenses" => "84512",
"social_id" => 1
),
array(
"val" => "Instagram",
"expenses" => "123",
"social_id" => 2
)
);
but this should be dynamic, the length of the above array can be varies

Answer 1

You can merge the arrays to one and use array_column to get all vals or expenses in a separate array.
Then foreach one array and build the new array with the key.
//$a = your array
// Grab each column separate
$val = array_column($a, "val");
$expenses= array_column($a, "expenses");
$social_id = array_column($a, "social_id");
Foreach($val as $key => $v){
$arr[] = [$v, $expenses[$key], $social_id[$key]];
}
Var_dump($arr);
https://3v4l.org/nVtDf
Edit updated with the 'latest' version of the array. My code works just fine with this array to without any changes.

Answer 2

to get that array style you can do it by hand for each array
function test(array ...$arr)
{
$result = array();
foreach ($arr as $key => $pair) {
foreach ($pair as $item => $value) {
$result[$item] = $value;
}
}
return $result;
}
$arr1 = test( ['facebook' => 1], ['expenses' => 100]);
print_r($arr1);
/* Array (
[facebook] => 1,
[expenses] => 100
)
*/
$arr2 = test( $arr1, ['more info' => 'info'] );
print_r($arr2);
/* Array (
[facebook] => 1,
[expenses] => 100,
[more info] => info
)
*/
you can pass it any number of
['Key' => 'Pair']
array('Key' => 'Pair')
or even a previous made array and it will add them up into 1 big array and return it