How can PHP be used to dynamically load content based on user input, such as clicking on a link?

To dynamically load content based on user input, such as clicking on a link, you can use AJAX in combination with PHP. When a user clicks on a link, an AJAX request can be sent to a PHP script that retrieves the necessary content from a database or external source. The PHP script then returns the content back to the client-side JavaScript, which can update the page with the new content without requiring a full page reload. 

<?php
// PHP script to dynamically load content based on user input

if(isset($_GET['content_id'])) {
    $content_id = $_GET['content_id'];

    // Perform database query or any other logic to retrieve content based on $content_id

    // For example, assume $content is the dynamically loaded content
    $content = "This is the dynamically loaded content for content_id = $content_id";

    // Return the content as JSON
    echo json_encode(array('content' => $content));
}
?>

Keywords

PHP dynamic content user input event handling AJAX

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