1.1 Web Fundamentals + 1.2 Introduction to PHP+ 1.3 Construction of PHP development environment + 2.1 PHP syntax basics (displaying server information) + 2.2 PHP Grammar Fundamentals (Product Price Calculation) + 3.1 Process Control (Air Quality Index Level Judgment) + 3.2 Process Control (Ninety Nine Multiplication Table) + 3.3 Process Control (Print Pyramid)+ 4.1 Arrays (shopping cart display)+ 5.1 Functions (Product Order Calculation) + 6.1 Basic concepts of classes (classes and objects) + 6.2 Basic Concepts of Classes (Definition and Members of Classes) + 6.3 Basic concepts of classes (constructors and destructors) + 6.4 Object oriented programming (static tool class) + 6.5 Object oriented programming (inheritance) + 6.6 Object oriented programming (encapsulation) + 6.7 Object oriented programming (polymorphism) + 6.8 Object Oriented Programming (Magic Method) + 6.9 Abstract classes+ 6.10 Interface+