Creating an html php code with a dropdown menu listing states and zipcodes. Zip code and cities are saved on mysql and have to use AJAX to search cities. I already have the zip codes and states loaded on mysql just got to get the php code which im not goo

Creating an html php code with a dropdown menu listing states and zipcodes. Zip code and cities are saved on mysql and have to use AJAX to search cities. I already have the zip codes and states loaded on mysql just got to get the php code which im not good at. Links to follow: http://relayfiles.njit.edu/mchugh/Faculty_-_For_Modules/MP4_with_Smart_Player_%28Large%29/ajax-menu_-_20160416_093651_15.html https://web.njit.edu/~mchugh/202/NOTES/Assignment03/student-overview.txt attached files are is the deliverables that i need to follow.