rewrite php code for small website

I have made a small php website, now i need a professional programmer to rewrite the php and implement a database. How does the site / script work: - Visitor submit a search request. - If search request results does not exist on local server, the script login at other website, scrape data en store results in a textfile on local server, show results to visitor. - if search request exist on local server, script display the data from textfile to visitor. script requirements (already working on the website): captcha form latest 10 request list option for visitor to download result to PDF file custom paypal donate button split search results for advertising spots. to do: rewrite php code implement database transfer 100K+ textfiles to the new database, and make the script read and write results to database not to local folder.