How to simplify an array with PHP

Question

Seems like a pretty basic question, but how can I simplify an array such as:

Array
(
    [0] => Array
        (
            [blue_dog_1] => 2
        )
    [1] => Array
        (
            [red_dog_1] => 4
        )
    [2] => Array
        (
            [red_dog_2] => 6
        )
)

To be like:

Array
(
    [blue_dog_1] => 2
    [red_dog_1] => 4
    [red_dog_2] => 6
)

Thanks in advance.

Answer 1

Try this way to make it single dimension from multi dimension using array_merge

$singleD = array_reduce($multiD, 'array_merge', array());

OR

$singleD = call_user_func_array('array_merge', $multiD);

Answer 2

Try this,

foreach($array as $sub_val)
{
   foreach($sub_val as $key=>$val)
   {
      $new_array[$key] = $val;
   }
}
print_r($new_array);

Answer 3

To accomplish this you can simply use array union operator .

$oldData = array(
             0 => array('blue_dog_1'=>2),
             1 => array('red_dog_1'=>4),
             2 => array('red_dog_2'=>6) 
          );

 $newData = array();
 foreach ($oldData as $arrayData) {
     $newData += $arrayData;
 }

 print_r($newData);