named functions an default arguments and null handling

<?php

  function Test(?string $name=null, ?int $age=null){

    

    $name= $name??"Guest";

    

    $age=$age??0;

    

    

    echo "Hello my name is $name my age is $age \n";

  }

    Test(age:44, name:"Ambiorix");

    

  ?>

Output:

9 ms | 18.4 MB

Hello my name is Ambiorix my age is 44 

Oop Guide practice

<?php

class Human{

// Class variables

public static int $globalID = 1000;

//Instance variables

   private  string $name;

   

private int $instanceNumId;

  //Constructor initializer

  

  

  public function __construct(string $name){

$this->intanceNumId=self::$globalID+=1;

$this->name=$name;

  }

  

//Getter methods

  function getId(){

  

    return $this->intanceNumId;

  }

  function getName(){

    return $this->name;

  }

}

//Class instances

$Test0 =  new Human("Class 0");

$Test1 =  new Human("Class 1");

echo  "--- Instance ID  {$Test0->getId()}\n";

echo  "--- Instance ID  {$Test1->getId()}\n";

//Accessing class static fields

echo  " Global  class ID ".Human::$globalID." , instance name {$Test0->getName()}  \n";

?>