在新元素中合并两个数组元素

Question

I have two array.

 $a = ['0' => 1, '1' => 2, '2' => 3]
 $b = ['0' => 4, '1' => 5, '2' => 6]

i want to create new array like this

 $c = [['a' => 1, 'b' => '4'], ['a' => '2', 'b' => '5']]

I have tried these functions array_merge , array_merge_recursive but did not get positive results

$data = array_merge_recursive(array_values($urls), array_values($id));

Answer 1

You have to apply array_map() with custom function:

$newArray = array_map('combine',array_map(null, $a, $b));

function combine($n){

    return array_combine(array('a','b'),$n);
}

print_r($newArray);

Output:- https://3v4l.org/okML7

Answer 2

Try this one

$c = array_merge($a,$b)
$d[] = array_reduce($d, 'array_merge', []);

It will merge the two array and reduce and remerge it.

Answer 3

You can use foreach to approach this

$a = ['0' => 1, '1' => 2, '2' => 3];
$b = ['0' => 4, '1' => 5, '2' => 6];
$res = [];
$i = 0;
$total = 2;
foreach($a as $k => $v){
  $res[$i]['a'] = $v;
  $res[$i]['b'] = $b[$k];
  $i++;
  if($i == $total) break;
}

Answer 4

The idea is to have an array $ab = ['a','b'] and a array from your both arrays like this $merged_array = [[1,4],[2,5],[3,6]] .
Now we can combine array $ab with each element of $merged_array and that will be the result we need.

   $first = ['0' => 1, '1' => 2, '2' => 3];
   $second = ['0' => 4, '1' => 5, '2' => 6];

   $merged_array = [];
   for($i=0;$i<count($first);$i++)
   {
        array_push($merged_array,[$first[$i],$second[$i]]);
   }

   $final = [];
   $ab = ['a','b'];
   foreach($merged_array as $arr)
   {
       array_push($final,array_combine($ab, $arr));
    }
    print_r($final);