How can the code snippet provided be improved to ensure proper functionality of the dynamic Pulldown feature in PHP?

The issue with the current code snippet is that it is missing the necessary JavaScript code to handle the dynamic Pulldown feature. To ensure proper functionality, we need to include JavaScript that fetches the data from the server and updates the dropdown options based on the selected value. This can be achieved by using AJAX to make a request to the server and update the dropdown options accordingly. 

<?php
// PHP code to fetch data from the server
$data = ["Option 1", "Option 2", "Option 3"]; // Sample data

// JavaScript code to handle dynamic Pulldown feature
?>

<html>
<head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
    <script>
        $(document).ready(function(){
            $('#parent').change(function(){
                var selectedValue = $(this).val();
                $.ajax({
                    url: 'get_options.php', // PHP file to handle AJAX request
                    type: 'POST',
                    data: {selectedValue: selectedValue},
                    success: function(response){
                        $('#child').html(response);
                    }
                });
            });
        });
    </script>
</head>
<body>
    <select id="parent">
        <option value="1">Category 1</option>
        <option value="2">Category 2</option>
        <option value="3">Category 3</option>
    </select>
    <select id="child">
        <?php foreach($data as $option): ?>
            <option value="<?php echo $option; ?>"><?php echo $option; ?></option>
        <?php endforeach; ?>
    </select>
</body>
</html>

Keywords

PHP dynamic Pulldown code snippet functionality improvement

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