​x
 
<!DOCTYPE html>
<html>
<body>
​
<?php
class Car
{
    var $color;
    function Car($color="green") {
      $this->color = $color;
    }
    function what_color() {
      return $this->color;
    }
}
​
function print_vars($obj) {
   foreach (get_object_vars($obj) as $prop => $val) {
     echo "\t$prop = $val\n";
   }
}
​
// instantiate one object
$herbie = new Car("white");
​
// show herbie properties
echo "\herbie: Properties\n";
print_vars($herbie);
​
?>  
​
</body>
</html>
​