How can PHP variables be properly assigned and used to store form data for later processing and insertion into tables?

To properly assign and use PHP variables to store form data for later processing and insertion into tables, you can use the $_POST superglobal to retrieve form data submitted via POST method. Assign the form data to variables for easier manipulation and insertion into a database table using SQL queries.

// Retrieve form data using $_POST superglobal
$name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];

// Insert form data into a database table
$sql = "INSERT INTO table_name (name, email, message) VALUES ('$name', '$email', '$message')";
// Execute the SQL query
mysqli_query($connection, $sql);