What are the best practices for handling server-side interactions in PHP when triggered by client-side events like onChange in HTML elements?

When handling server-side interactions triggered by client-side events like onChange in HTML elements, it is important to use AJAX to send asynchronous requests to the server without refreshing the page. This allows for a seamless user experience and efficient data processing on the server side. 

<?php
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // Handle server-side logic here
    $data = $_POST['data'];
    
    // Return response to client
    echo json_encode(['message' => 'Server-side interaction successful']);
    exit;
}
?>

Keywords

PHP server-side interactions client-side events onChange HTML elements

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