How can you remove duplicate entries from an array in PHP?

To remove duplicate entries from an array in PHP, you can use the `array_unique()` function. This function removes duplicate values from an array and returns a new array with unique values. By passing the original array as an argument to `array_unique()`, you can easily remove any duplicate entries.

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

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

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