Master Coding Skills &
System Design.

Learn PHP date(), strtotime(), and DateTime class for formatting, comparing, and calculating dates.

Learn PHP namespaces, the use keyword, aliasing, and Composer PSR-4 autoloading.

Learn try-catch-finally, multiple exception types, and custom Exception classes.

Learn PHP PDO — connecting to MySQL, fetching rows, and preventing SQL injection with prepared statements.

Learn PHP interfaces and traits — contracts, code reuse, multiple interfaces.

Learn PHP inheritance — child classes extend parents, override methods, and call parent:: .

Learn PHP form handling — GET vs POST, reading $_POST data, validation, and sanitization.

A beginner introduction to OOP PHP — classes, objects, properties, methods, constructors.

Learn reading and writing files in PHP — file_get_contents, file_put_contents, fopen, fwrite.