how to iterate object in php array code example

Example: loop through object php

<?php
class MyClass 
{
  public $var1 = 'valeur 1';
  public $var2 = 'valeur 2';
  public $var3 = 'valeur 3';

  protected $protected = 'variable protégée';
  private   $private   = 'variable privée';

  function iterateVisible() {
     echo "MyClass::iterateVisible:\n";
     foreach ($this as $key => $value) {
         print "$key => $value\n";
     }
  }
}

$class = new MyClass();

foreach($class as $key => $value) {
    print "$key => $value\n";
}
echo "\n";


$class->iterateVisible();