A super global variable called $_SERVER["PHP SELF"] returns the name of the script that is presently running. As a result, rather than navigating to another page, the $_SERVER["PHP SELF"] transmits the form data to the current page. The user will receive error notifications in this manner on the same page as the form. On page load, you can leave the table's property set to display:none, and when the button is clicked, run a function to change the table's display to block.