In PHP, how do I deduplicate strings with built-in functions?

In PHP, you can easily deduplicate strings using built-in functions. One of the most common ways to achieve this is by using the `array_unique()` function to remove duplicate values from an array after splitting a string into an array using `explode()`. Here’s a simple example:


        <?php
        $string = "apple,banana,apple,orange,banana";
        $array = explode(",", $string); // Split the string into an array
        $uniqueArray = array_unique($array); // Remove duplicates
        $resultString = implode(",", $uniqueArray); // Convert array back to string
        echo $resultString; // Outputs: apple,banana,orange
        ?>