How can the PHP script be modified to ensure all form data is present before attempting to write to the database?

To ensure all form data is present before attempting to write to the database, you can add a validation step to check if all required fields are filled out. This can be done by checking if the required form fields are not empty before proceeding with the database insertion. 

// Check if all form data is present before writing to the database
if(isset($_POST['field1']) && isset($_POST['field2']) && isset($_POST['field3'])) {
    // Proceed with database insertion
    // Your database insertion code here
} else {
    // Handle the case where not all form data is present
    echo "Please fill out all required fields.";
}

Keywords

PHP form data validation isset function empty function database insertion

Related Questions