如何检查php多维数组值是否相同？

Question

My array is like this,

Array
(
    [0] => Array
        (
            [con_id] => 44
        )

    [1] => Array
        (
            [con_id] => 217
        )

    [2] => Array
        (
            [con_id] => 217
        )

    [3] => Array
        (
            [con_id] => 217
        )

    [4] => Array
        (
            [con_id] => 97
        )

)

I want to check all the con_id are the same then, return true or return false . Is there any built-in function in php for doing this?

Thanks in advance.

Answer 1

Just check count of unique elements.

$array = array(array('con_id'=>44),array('con_id'=>44),);
$result = count(array_unique($array, SORT_REGULAR))==1; 

var_dump($result);