Rafael Jiménez

Stock Portfolio & Historical Data Browser

A dynamic, data-driven web application designed to manage fictional portfolios and analyze real-world historical stock data.



Project Overview

Technologies: PHP, PHP Data Objects (PDO), SQLite, SQL, CSS

This project involved developing a full-stack web application that allows users to interact with financial data in real-time. I used PHP Data Objects (PDO) to ensure secure communication with an SQLite database, protecting the application's data integrity.

Key technical features of this application include:

  • Complex SQL Engineering: I engineered advanced queries utilizing INNER JOINs and aggregate functions to calculate historical statistics and real-time portfolio values.


  • Responsive Design: I designed a multi-page interface from scratch using custom CSS to ensure the data is accessible and readable across all devices.


  • Data Management: The system efficiently handles fictional user portfolios alongside real-world historical data points.



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