How can a PHP array be assigned to a JavaScript array in an Ajax success function?

To assign a PHP array to a JavaScript array in an Ajax success function, you can encode the PHP array into JSON format using the `json_encode()` function in PHP. Then, in the Ajax success function, you can parse the JSON data back into a JavaScript array using `JSON.parse()`.

<?php
$phpArray = array("apple", "banana", "cherry");
$jsonArray = json_encode($phpArray);
?>

<script>
$.ajax({
    url: 'your_php_file.php',
    type: 'POST',
    success: function(data) {
        var jsArray = JSON.parse(data);
        console.log(jsArray); // Output: ["apple", "banana", "cherry"]
    }
});
</script>