How to convert two dimensional array to one dimensional array in php?

Question

I am Having an mutidimensional array getting result like given below

Array
(
    [0] => Array
        (
            [0] => 70
        )

    [1] => Arra         


        

Answer 1

This should do the trick

$final = array();
foreach ($outer as $inner) {
  $final = array_merge($final, $inner);
}
var_dump($final);

Or you could use array_reduce() if you have PHP >= 5.3

$final = array_reduce($outer, function($_, $inner){
  return $_ = array_merge((array)$_, $inner);
});
var_dump($final);