What are the drawbacks of using additional forms and "header()" redirects to handle data submission in PHP?

Using additional forms and "header()" redirects to handle data submission in PHP can lead to potential issues such as data loss, increased complexity in code maintenance, and potential security vulnerabilities. To solve this issue, a more efficient and secure way to handle data submission is to use AJAX requests to send data to the server without refreshing the page. 

// Example of handling data submission using AJAX in PHP

// Check if the request is an AJAX request
if(isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    // Process the data submitted via AJAX
    $data = $_POST['data'];
    
    // Perform necessary operations with the data
    
    // Send a JSON response back to the client
    echo json_encode(['success' => true]);
    exit;
}

Keywords

forms header() redirects data submission drawbacks

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