What are the best practices for handling form submissions in PHP to avoid unnecessary steps like confirmation pages?

When handling form submissions in PHP, one way to avoid unnecessary steps like confirmation pages is to use the POST/Redirect/GET pattern. This involves processing the form data, performing any necessary actions, and then redirecting the user to a different page to prevent form resubmission when the user refreshes the page. 

<?php

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // Process form data here

    // Redirect to a different page to prevent form resubmission
    header('Location: success.php');
    exit;
}

?>

Keywords

form submissions PHP validation redirection error handling

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