How to extract unique values from an array in PHP?

To extract unique values from an array in PHP, you can make use of the array_unique() function. Here's an example:

// Sample array
$array = array(2, 4, 6, 8, 2, 4, 10, 8);

// Extracting unique values
$uniqueArray = array_unique($array);

// Outputting unique values
print_r($uniqueArray);

Output:

Array
(
    [0] => 2
    [1] => 4
    [2] => 6
    [3] => 8
    [6] => 10
)

In this example, the array_unique() function removes the duplicate values from the given array and returns an array containing only the unique values.