Here's a link to a file named presidents.txt (Links to an external site.) that contains the data you need for this assignment. Download and copy this file to your directory. You will use it for this assignment.

1. Write a file named hw3a.php. This file should contain a form that sends its action to hw3b.php. The form should contain a select whose options contain values that are the president number, and the options should display the names of the presidents.

2. Write a file named hw3b.php. This file should display the name, year, age, state, party, occupation, and college for the chosen president.

3. Write a file named hw3c.php. This file should contain a form that sends its action to hw3d.php. The form contains text fields for name, year, age, state, party, occupation, and college.

4. Write a file named hw3d.php. This file should calculate a new president number (one more than the highest president ID). The file should then insert the new record at the end of the file.