​​ File Uploading Mechanism of PHP and Website Performance Conduct appropriate research , using the South University Online Library or the Internet, to answer the following questions: • Analyze and explain whether the file upload mechanism of PHP poses any security threat to the data on the server. Justify your answer with appropriate research, reasoning and examples. Discuss the threats associated with the file upload mechanism in PHP. Discuss the security checks in place in the file upload system, against these threats. • Click here to visit the website, which is a discussion forum for IT-related topics. Create a checklist with good and bad features in terms of the usability and performance of the website. Discuss and share your findings with your classmates. Also comment on any one feature proposed by another student, which is different from yours. Give reasons as to why you agree or disagree with that student. In addition discuss the following: o What is the type of design—single threaded or multithreaded—used by the discussion forum? Is this design appropriate considering the user base of the forum? How can the design of this discussion forum be improved? XML Tagging The final step to completing our shop website is, to store the user's purchases in a file. Now that you have a Shopping Cart page that stores the items in cookies and displays them to the user, modify the Shopping Cart page to include a submitbutton. Once the submit button is clicked, the user is directed to a page with a Thank Youmessage, you can call it confirmationpage.php. The page needs to store the items the user purchased into an XML file by either parsing the contents of the cookies created in the Shopping Cart page, or parsing the contents of the array stored in the cookie (depending on which strategy you chose to solve last week's assignment. The XML file, named purchases.xml needs to include the following items: • Item name • Item price It is up to you to determine the format of the XML file, you are welcome to follow the below suggested format if you want: Submit your code as well as a test plan in a 4- to 5-page Microsoft Word document consisting of: • Screenshots of your project (showing design, data entered, and displayed) • A paragraph explaining how you tested your project • All HTML or PHP script zipped under one file Support your responses with examples. Cite any sources in APA format.