PHP Interpreter Internals: Theory and Hands‑On Implementation in C
This course introduces the background and characteristics of PHP, explains the role and operation of the PHP interpreter, and guides students through building a simple interpreter in C by covering lexical analysis, parsing, virtual machine design, and hands‑on debugging with GDB.
This course provides an in‑depth introduction to the PHP language, its background, and the purpose and operation of the PHP interpreter.
It systematically analyzes the interpreter’s core components, including lexical analysis, syntax parsing, and the virtual machine, while explaining their internal mechanisms.
Students will learn how to implement each module of the interpreter using C, completing a hands‑on project that results in a functional, simple PHP interpreter.
Upon completion, learners will be able to comprehend the inner workings of the PHP interpreter, write interpreter components in C, and enhance their problem‑solving, programming, and project‑development skills.
The course is designed for both beginners interested in PHP and experienced developers seeking deeper insight into interpreter internals.
Course Outline
Chapter 1: Introduction Section 1: Tools for reading source code and downloading php‑src Section 2: PHP program execution methods Section 3‑6: Exploring the main entry function of php‑cli with GDB debugging (four parts) Section 7: Global variables in cli_sapi_module
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