PHP Notes Application

This is a simple note-taking web application built using PHP and MySQL. It allows authenticated users to save their notes to a database and display them on the page. The application uses PHP sessions for user authentication.

Features

• User Authentication: Users must be logged in to access the note-taking functionality.
• Add Notes: Users can submit notes, which are stored in a MySQL database.
• Display Notes: Notes are fetched from the database and displayed for the logged-in user.
• Secure Input Handling: User input is sanitized to prevent XSS attacks.

Technologies Used

• PHP
• MySQL
• HTML
• Sessions for authentication

Database Setup

The application requires a MySQL database with the following structure:

Database: mydata

Table: notes

Column	Type	Description
id	INT	User ID (from session)
note	TEXT	The note text submitted by the user

How It Works

1. Session Check:

   • The application checks for $_SESSION['username'], $_SESSION['password'], and $_SESSION['id']. If any are missing, the user is redirected to login.html.

2. Note Submission:

   • Users can submit notes via a form. The note is sanitized using filter_var() and then inserted into the MySQL database.

3. Display Notes:

   • The notes associated with the logged-in user are retrieved from the notes table and displayed on the page.

Installation and Setup

1. Clone the Repository

git clone https://github.com/mostafa587/php_note_project.git