如何在PHP中只将字符串中的数字保存到int数组中

Question

in my POST variable i have: print_r($_POST["partecipanti"]); It displays ["1", "2"]

I want to save only the numbers of the post variable in an int array. I tried

$array = array();
 preg_match_all('/-?\d+(?:\.\d+)?+/', $_POST["partecipanti"], $array);

But print_r($array) returns

Array (
 [0] => Array (
        [0] => 1
        [1] => 2
        )
    )

How can i have a variable like

Array (
  [0] => 1
  [1] => 2
     )

Hope i explained good, thanks all in advance

Answer 1

preg_match_all returns a new multidimensional array every time. But you could just "pop" the array:

$array = array();
preg_match_all('/-?\d+(?:\.\d+)?+/', $_POST["partecipanti"], $array);
$array = $array[0];

Returns:

Array (
  [0] => 1
  [1] => 2
)