Introduction
Acknowledgements
Content
Structure
1. Extension
2. Core
Constants
Functions
1. Arguments
2. 1. Scalar Types
  2. 1. Boolean
    2. Integer
    3. Floating point numbers
    4. Strings
  3. Compound Types
  4. 1. Arrays
    2. Objects
    3. Callable
    4. Iterable
    5. Enumerations
  5. Special Cases
  6. 1. Optional Parameters
    2. Passing by Reference
    3. Default Argument Values
    4. Variable-length Argument Lists (Variadics)
3. Return Values
4. 1. No Return Value
  2. Scalar Types
  3. Arrays
  4. Objects
Classes
1. Class Constants
2. Class Methods
3. Class Properties
4. Class Interface
5. 1. Implement an Interface
6. Class Inheritance
7. 1. Abstract Class
  2. Extend a Class

Classes

Userland PHP Code Snippet

The code below shows how a class would be declared in userland PHP code.

class Hdi {
}

Internal PHP Code

The following sections show all required code to declare a class internally in PHP.

PHP Stub (`hdi.stub.php`)

The stub file is used to declare the class signature:

namespace (global)
name (Hdi)

class Hdi {}

Argument Information (`hdi_arginfo.h`)

This file is generated during compilation, based on the stub file contents.

Header File (`hdi.h`)

In this file, a pointer to a zend_class_entry must be declared for the defined class:

  extern zend_class_entry *zceHdi;

Implementation (`hdi.c`)

The implementation below is elaborated and each part has its own purpose, as shown below:

Copyright (c) 2022 - Flavio Heleno