how to use return_rul in php oop code example

Example 1: create a class in php

<?php
class Fruit {
  public $name;
  public $color;

  function __construct($name, $color) {
    $this->name = $name;
    $this->color = $color;
  }
  function get_name() {
    return $this->name;
  }
  function get_color() {
    return $this->color;
  }
}

$apple = new Fruit("Apple", "red");
echo $apple->get_name();
echo "<br>";
echo $apple->get_color();
?>

Example 2: php object

$obj = [
  "example1" => 1,
  "example2" => "two",
  "example3" => [
    "example4": true
  ]
]