php - 查找两个数组中的差异并将差异放入一个新数组或变量中

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

我需要比较数组$b并将$a缺少的数组放入$b新数组中$c

 $c=array();

Answer 1

利用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 );