Search Update Add Records Form

Create a form on PHP that allows to search on a field. Update a matching record or records. Also you can create a new record if it doesn't exists. You need to be able to import a file with the information into SQL. Also export it out. For example I will import a file with first name, last name , phone and email to SQL. On the website (PHP form) I need to be able to search lets say for "last name" ..once the record come up i can click on it and edit it. Also if the record doesn't exist I can added on. Every week I have to be able to download that data from SQL into an excel or text file.