Simple Store Locator script written in PHP

JOB REQUIREMENTS ____________________________ I require a Store Locator Script that will function like the following: [login to view URL] A text field where user types their location (locations populated in drop-down list underneath) and a submit button. This field may also automatically populate using Geolocation, but must display the suburb or city only - not full address. Upon submit, send the location to start.php. [login to view URL] When the user clicks submit in [login to view URL], and the location is sent to [login to view URL], [login to view URL] will query the database, find the nearest store and redirect the user to a URL with the nearest "Store" in in the URL string. For example, if the user is in "Los Angeles, CA", and the nearest store is "LA Shop" - the url string that the user will be redirected to will be: http://www.example.com/a=Los+Angeles,+CA&b=LA+Shop&c=1&d=2&e=3&f=4&g=5&h=6 Based on the assumption that the redirect is based on the following: http://www.example.com/a= Searched Location&b= Nearest Store &c= The text in database field C &d=The text in database field D etc. etc. The base of the URL, ie. "[login to view URL]" and the structure of the redirecting URL string will be stored in in a configuration section in the "[login to view URL]" file. I must be able to edit the labels associated with each part of the URL string, for example I may need to change example.com/a=Los+Angeles,+CA to example.com/location=Los+Angeles,+CA I must be able to create a number of different [login to view URL] files to use for various parts of websites, as each website will need a different base URL in the redirect. They will simply have a suffix, [login to view URL], [login to view URL], [login to view URL] etc. Essentially every [login to view URL] file I create will allow me to change the URL redirect entirely, after pulling the nearest store (territory) from the database. ======================== ADMIN PANEL ____________________________ I would like a password protected admin panel which will be a GUI to add and remove stores. Add Store Page; I will need to be able to enter an address (and then be able to move the pin on the map to set the Longitude and Latitude) List Stores Page; I would like to be able to see all the stores on a map, and then underneath have all the stores listed, with the option to delete or edit. Bulk Edit Stores Page; The ability to select multiple stores, and edit their location on the map all at once. ======================= FINAL NOTES ____________________________ > For this project, the word "Store / store" will be replaced with "Territory / territory" in all instances. > The code must be clean and lightweight and mobile-friendly > [login to view URL] should be in a PHP page/file that can be embedded into other pages with ease. This is why it needs to be as lightweight and versatile as possible.