Write a PHP script that validates each input field in the form shown below.

If the input is valid and error$-$free, save the data to a database of your choice and display a success message to the user. If there are errors, prompt the user to correct them before allowing the form to be submitted.

Expected outputs: Contact Us

First Name:

Last Name:

Email:

Phone Number:

Message:

Send Message

First Name is required.

Last Name is required.

Email is required.

Phone Number is required.

Message is required.

Contact Us

First Name:

Email:

Message:

Last Name:

Phone Number: