Find the Non-Repeating Elements in an Array

Question

My array is :

$array= array(4,3,4,3,1,2,1);

And I\'d like to output it like below:

Output = 2 

(As 2 i

Answer 1

If in your scenario there will be only one unique value you could use:

$array= array(4,3,4,3,1,2,1);
$singleValue = array_search(1, array_count_values($array));
var_dump($singleValue) // Outputs: 2