CODEWITHSUNDEEP
phparrays
Chibang Dayanan
Chibang Dayanan

Reputation: 189

Flatten Arrays While Retaining Keys

How can I flatten an array while retaining its keys?

Say for example I have the following array:

array (size=2)
  0 => 
    array (size=1)
      'bonus' => float 20
  1 => 
    array (size=1)
      'bonus_percent' => float 2
      array (size=1)
         'bonus_all' => float 22

How can I "flatten" it to be like this? :

array (size=2)
  'bonus' => float 20
  'bonus_percent' => float 2
  'bonus_all' => float 22

I have found this function from SO also, which results to the current results. 

$objTmp = (object) array('aFlat' => array());

array_walk_recursive($results, create_function('&$v, $k, &$t', '$t->aFlat[] = $v;'), $objTmp);

var_dump($results);

Upvotes: 0

Views: 58

Answers (1)

jeroen
jeroen

Reputation: 91734

If there are no deeper levels you need to flatten, a loop is probably an easier solution than using array_walk_recursive().

Something like:

$original = array(...);
$result = array();

foreach ($original as $value) {
    $result += $value;
}

Upvotes: 2

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