合并自定义2数组

Question

halo guys. nice to meet you. i am still new in program. especially in php code. now im learning about array code. can i merge 2 array become 1.

ex : i vardump some parameter and the result like this

'list_data' => 
array (size=2)
  0 => 
    array (size=1)
      'branch_id' => string '3' (length=1)
  1 => 
    array (size=1)
      'branch_id' => string '4' (length=1)

can i merge that array become like this :

'list_data' => 
array (size=2)
  0 => string  '3' 
  1 => string  '4' 

please help me. im so curious about this.

Answer 1

This is a case for array_map:

$array = [
    'list_data' => [
        [ 'branch_id' => 3],
        [ 'branch_id' => 4],
    ]
];

$array['list_data'] = array_map(function($item) {
    return $item['branch_id'];
},$array['list_data']);
var_dump($array);

Or array_column

$array['list_data'] = array_column($array['list_data'], 'branch_id');
var_dump($array);