如何将2-dim字符串数组转换为1-dim修剪的唯一值数组？

Question

我有一个数组,其值是特定格式的所有数组,如下所示:

Array
(
    [0] => Array
        (
            [0] => '8227'
            [1] => ' 8138'
        )

    [1] => Array
        (
            [0] => '8227'
            [1] => ' 8138'
            [2] => ' 7785'
        )

)

我想这个:

Array
(
    [0] => 8227
    [1] => 8138
    [2] => 7785
)

我怎样才能做到这一点 ？

Answer 1

$result = array();
foreach ($input as $sub) { // Loop outer array
  foreach ($sub as $val) { // Loop inner arrays
    $val = trim($val);
    if (!in_array($val, $result)) { // Check for duplicates
      $result[] = $val; // Add to result array
    }
  }
}