Get key of multidimensional array?

Question

For example, I have multidimensional array as below:

$array = array (
  0 => 
    array (
      \'id\' => \'9\',
      \'gallery_id\' => \'2\',
             


        

Answer 1

Probably http://php.net/manual/en/function.array-keys.php ?

Convert your double dimensional array on your own:

$tmp = null
foreach($array as $key => $value) {
  $tmp[] = $key;
}

print_r($tmp);