How can the user modify the logic in the PHP script to ensure that the registration form is rendered correctly?

The user can modify the logic in the PHP script by ensuring that the form fields are correctly named and that the form is properly structured within the HTML. The PHP script should handle form submission, validation, and processing of the registration data. Additionally, the PHP script should include error handling to display any validation errors to the user. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Validate form data
    $errors = array();

    $username = $_POST['username'];
    if (empty($username)) {
        $errors[] = "Username is required";
    }

    // Add more validation for other form fields

    if (empty($errors)) {
        // Process registration data
        // Insert data into database, etc.
    } else {
        // Display validation errors to the user
        foreach ($errors as $error) {
            echo $error . "<br>";
        }
    }
}
?>

<!DOCTYPE html>
<html>
<head>
    <title>Registration Form</title>
</head>
<body>
    <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
        <label for="username">Username:</label>
        <input type="text" name="username" id="username">
        
        <!-- Add more form fields here -->

        <input type="submit" value="Register">
    </form>
</body>
</html>

Keywords

PHP script registration form logic modification rendering user input.

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