Are there any best practices for efficiently handling duplicate entries in PHP arrays?

When dealing with duplicate entries in PHP arrays, one common approach is to use the array_unique() function. This function removes duplicate values from an array and returns a new array with unique values. By using array_unique(), you can efficiently handle duplicate entries in PHP arrays.

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

// Remove duplicate entries using array_unique()
$uniqueArray = array_unique($array);

// Output the unique array
print_r($uniqueArray);