php constructor

<?php
class Beverage {
  public $temperature, $color, $opacity;

  function getInfo() {
    return "This beverage is $this->temperature and $this->color.";
  }

  //constructor to set parameters to their respective object properties
  function __construct($temperature, $color){
    $this->temperature = $temperature;
    $this->color = $color;
  }
}
$tea = new Beverage("cold", "black"); // enter arguments to invoke constructor in creating new object
echo $tea->getInfo();