How can developers ensure that forms and scripts are properly structured and independent of each other in PHP applications?

To ensure that forms and scripts are properly structured and independent of each other in PHP applications, developers can separate the form handling logic from the script logic by creating separate files for each. This separation helps in maintaining clean and organized code, making it easier to debug and maintain the application. 

// Form handling logic in form.php
<form action="process_form.php" method="post">
    <input type="text" name="username">
    <input type="password" name="password">
    <button type="submit">Submit</button>
</form>

// Script logic in process_form.php
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $username = $_POST['username'];
    $password = $_POST['password'];

    // Process form data here
}
?>

Keywords

form validation PHP namespaces separation of concerns dependency injection MVC architecture

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