architshukla/Plagiarism-Checker ? reverse-engineered prompt

Build me a simple web app that lets someone upload a document and check whether the text looks plagiarised.

It should accept common file types like txt, docx, pdf, and ppt when possible, then extract the text, break it into small chunks, search for matching content online, and compare the results for similarity. Show a clear report with an overall plagiarism score, the matched sources, and the similarity found for each one. I’d also like a place to view past checks and any saved logs, plus a clean upload page that feels easy to use.

Use PHP for the main app, and it’s fine to call out to Python scripts for the text processing and similarity work since that seems to be how this project is set up. Keep the UI simple and functional, with a basic dashboard style. If you need current library or API details, look them up online and wire it together in the easiest reliable way.