How can one efficiently remove duplicate values in a PHP array?

To efficiently remove duplicate values in a PHP array, you can use the array_unique() function. This function removes duplicate values from an array and returns a new array with unique values.

// Sample PHP array with duplicate values
$array = [1, 2, 2, 3, 4, 4, 5];

// Remove duplicate values from the array
$uniqueArray = array_unique($array);

// Output the array with duplicate values removed
print_r($uniqueArray);