比较两个数组，两个数组之间是否有共同的元素？

I need to test if one element of an array is in another array.

我需要测试一个数组的一个元素是否在另一个数组中。

$array_one = array("gogo", "blabla", "toto");

$array_two = array("stackov", "renaul", "toto");

I would like to know if one element of array_one is in array_two ???

我想知道array_one的一个元素是否在array_two中？

How to test that? Am trying in_array but it seems to have problems.

怎么测试？我在尝试in_array，但似乎有问题。

3 个解决方案

#1

array_intersect()

array_intersect（）

$array1 = array("gogo", "blabla", "toto");
$array2 = array("stackov","renaul","toto");

$commonElements = array_intersect($array1,$array2);

var_dump($commonElements);

#2

Try this one:

试试这个：

array_intersect($array_one, $array_two);

#3

Mark's answer should be enough for your problem. If you ever wish to find the intersect of more than 2 arrays, use this:

马克的答案应该足以解决你的问题。如果您希望找到两个以上数组的交叉，请使用：

$arrays = array(
    array(1, 2, 3),
    array(2, 4, 6),
    array(2, 8, 16)
);

$intersection = call_user_func_array('array_intersect', $arrays);

#1