PHP & MySQL Tutorials
PHP and MySQL tutorials covering web applications, database queries, file handling, and server-side scripting fundamentals.
GET and POST Methods
Handle HTTP requests in PHP using $_GET and $_POST superglobals.
if-else & Logical Operators
PHP conditionals, comparison operators, ternary, and null coalescing.
switch-case Statement
Control flow with switch-case in PHP - syntax, fall-through, and match().
OOP Constructor Method
PHP constructors with __construct, parameter promotion, and inheritance.
WHERE with LIKE
SQL pattern matching with the LIKE operator, wildcards, and PHP examples.
Common PHP Errors
Debug and fix the most common PHP errors - syntax, undefined variables, and types.
DomPDF - HTML to PDF
Generate PDF documents from HTML with the DomPDF library and Composer.
Online File Extractor
Extract ZIP, RAR, and compressed archives on the server with PHP.
Simple Chat App
Build a real-time chat with PHP, MySQL, AJAX, and long-polling updates.
Star Rating System
Interactive star ratings with PHP, MySQL, AJAX, and anti-fraud measures.
CKEditor File Upload
Configure CKEditor for image and audio uploads with a PHP backend.
Site Search Engine
Full-text site search with PHP, MySQL FULLTEXT indexing, and AJAX.
BBCode to HTML Converter
Parse BBCode tags and smileys into HTML using PHP regex with a reusable function.
About These PHP & MySQL Tutorials
PHP powers roughly 77% of all websites with a known server-side language, including WordPress, Laravel, and Drupal. Combined with MySQL, it forms the most widely deployed web application stack in the world. These tutorials cover the PHP and MySQL skills that working developers encounter most frequently — from handling HTTP requests and writing SQL queries to building complete interactive features.
The fundamentals section covers GET/POST handling, conditionals, switch-case, and OOP patterns that every PHP developer needs. The MySQL tutorials focus on practical query patterns like WHERE with LIKE that appear in search, filtering, and reporting features. The application tutorials go further, showing how to build complete features including a real-time chat system with AJAX long-polling, a star rating widget with anti-fraud protection, a CKEditor file upload backend, and a full-text search engine.
Each tutorial provides production-ready code with security considerations built in — input validation, prepared statements for SQL injection prevention, and XSS protection. The DomPDF tutorial covers server-side PDF generation, and the BBCode converter shows how to safely parse user-generated markup. Whether you are building a new PHP application or maintaining an existing one, these guides address the most common tasks with tested, secure solutions.