README.md

PHP Web Fundamentals

Learning reference with standalone PHP, HTML, CSS, JavaScript, and SQL exercises organized by topic and runnable with the PHP CLI or the built-in PHP server.

Contents

Folder	Focus
Day00	HTML/CSS layouts, responsive pages, browser JavaScript
Day01	PHP CLI scripts, strings, arrays, parameters
Day02	Dates, time parsing, text processing
Day03	GET parameters, cookies, raw output, protected pages
Day04	Account creation, auth flow, login/logout, chat pages
Day05	SQL query files
Day07	Object-oriented PHP classes
Day09	Browser JavaScript interactions

Run PHP Files

CLI example:

php Day01/ex00/hw.php

Local web server:

php -S localhost:8000

Then open a path such as:

http://localhost:8000/Day04/ex04/index.html

Validate PHP Syntax

sh scripts/check.sh

The script runs php -l against every PHP file in the repository.

Related files:

• scripts/check.sh
• .github/workflows/check.yml
• .github/workflows/codeql.yml

Runtime Notes

• No Composer install step is required.
• Some Day04 flows create local runtime files such as private/ or passwd; those files are ignored.
• Auth examples use intentionally simple file-backed storage and are not production authentication patterns.

License

GPL-3.0