Understanding and Building a PHP Interpreter with C

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In the course, we will first understand the background and characteristics of the PHP language and the role and operation of the PHP interpreter. Then we will analyze in detail the core components of the PHP interpreter, such as lexical analysis, syntax analysis, and the virtual machine, and explore their internal implementation mechanisms.

Additionally, the course will introduce how to use the C language to write various modules of the PHP interpreter, including the lexical analyzer, parser, and virtual machine. Students will complete a practical project to implement a simple PHP interpreter themselves, deepening their understanding of the interpreter's source code.

Through this course, students will gain an in-depth understanding of the PHP interpreter's working principles and internal mechanisms, master methods and techniques for writing a PHP interpreter in C, and develop problem‑analysis and solving abilities, improving programming skills and project practice capabilities.

Whether you are a beginner interested in PHP or a developer seeking to understand the internal mechanisms of the PHP interpreter, this course will provide valuable experience and insights. Let us explore the mysteries of the PHP interpreter together and start a programming journey!

Chapter 1

Section 1: Introduction to tools for reading source code and downloading php-src source code

Section 2: PHP program execution methods

Section 3: PHP‑CLI execution – locating the entry function main and GDB debugger 1

Section 4: PHP‑CLI execution – locating the entry function main and GDB debugger 2

Section 5: PHP‑CLI execution – locating the entry function main and GDB debugger 3

Section 6: PHP‑CLI execution – locating the entry function main and GDB debugger 4

Section 7: PHP‑CLI entry function source – cli_sapi_module global variables

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