


PHP Interface Oriented Programming Coupling Design Pattern Simple Example_PHP Tutorial
interface js{
function ys($a,$b );
}
class Af implements js{
function ys($a,$b){
return "Addition operation...the result is:".($a+$b );
}
}
class Jf implements js{
function ys($a,$b){
return "Subtraction operation...the result is:".( $a-$b);
}
}
class AAf implements js{
function ys($a,$b){
return "Multiplication operation...result is: ".($a*$b);
}
}
class JJf implements js{
function ys($a,$b){
return "Division operation.. ....The result is: ".($a/$b);
}
}
class Modf implements js{
function ys($a,$b){
return "Modulo operation... the result is:".($a % $b);
}
}
class China implements js{
public $varl=null;// Directly here: public $varl = new nothingx(); will go wrong.
function __construct(){
$this->varl = new nothingx();
}
function ys($a,$b){
return $this->varl ->say();
}
}
/*It can also be implemented through inheritance:
class China extends nothingx implements js{
function ys($a,$b ){
return parent::say();
}
}
*/
class nothingx{
function say(){
return "I don’t have any operations Doing...just to realize'Coupled Design Pattern'...I am here to make soy sauce..." ;
}
}
class test{
private $one;
private $two;
public function __construct($x,$y){
$this-> ;one=$x;
$this->two=$y;
echo "Object-oriented programming - interface strong>
Class test initialization:
Attribute $one=".$this->one." Attribute $two=".$this->two."
";
}
function display(js $a){
return "Computation implemented using PHP interface technology - start the calculation:< /font>
".$a->ys($this->one,$this->two)."
";
}
}
$ t=new test(103,2);
$t1=new jf;
$t2=new China;
echo $t->display($t1);
echo $t- >display($t2);
?>

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

Python is an ideal programming introduction language for beginners through its ease of learning and powerful features. Its basics include: Variables: used to store data (numbers, strings, lists, etc.). Data type: Defines the type of data in the variable (integer, floating point, etc.). Operators: used for mathematical operations and comparisons. Control flow: Control the flow of code execution (conditional statements, loops).
