Mark is a person who loves to create connections and maintain friendships. He has collected a lot of contact details of many friends over the years. Now he is looking to organize the details using PHP. He does not have access to neither files nor db. Create a solution for Mark along the following functionalities: Displays all the contact details (name, phone number, email id, city, state) in alphabetical order of name. He should be able to search his contacts either providing the full name or part of the name that he remembers. Also he would like to all the persons he knows in a city. Display the details in an easy to understand format