找出两个数组中的差异，并将差异放在一个或多个新数组中

Question

我有两个数组

 Array ( [0] => db [1] => es [2] => fs [3] => rp [4] => ti [5] => wb )////array $a
 Array ( [0] => es [1] => db [2] => fs ) ///array $b

我需要将数组$b与$a进行比较，并将$b中缺少的数据放入新数组$c

 $c=array();

Answer 1

使用array_diff()

$c = array_diff($array1, $array2);

Answer 2

您可以使用array_diff()

$a =  array ( [0] => db [1] => es [2] => fs [3] => rp [4] => ti [5] => wb );
$b =  array ( [0] => es [1] => db [2] => fs ) ///array $b
$c = array_dif ( $a , $b );