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PHP 8 Programming Tips, Tricks, and Best Practices

Solution: Implementing a Class with PHP 8 Advanced OOP Features

Explore how to implement a PHP 8 class utilizing advanced object-oriented programming features such as constructor property promotion, match expressions, and named arguments. Understand how these features simplify code and enhance readability while producing dynamic personalized output.

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The code widget below contains the solution to the challenge. We will also go through a step-by-step explanation of the solution.

Solution

PHP
<?php
class User {
    public function __construct(        // Constructor property promotion
    private string $name,
    private int $age,
    private string $gender
    ) {}
    
    public function getInfo(): string {
        $greeting = match ($this->gender) {         // Match function
            'M' => 'Mr. ',
            'F' => 'Ms. ',
            default => ''
        };
    return "Hello $greeting$this->name, you are $this->age years old!";
    }
}
$user = new User(name: 'John', age: 25, gender: 'M');       // Named arguments
echo $user->getInfo(); // Output: Hello Mr. John, you are 25 years old!
?>

Let’s get into the code:

  • Lines 3–7: The ...