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PHP Object-Oriented PHP Basics (Retired) Properties and Methods Constructor Method

Yan Liu
Yan Liu
10,552 Points
Posted by Yan Liu
Yan Liu
10,552 Points

Help for Constructor Method

Hi guys, just watching this constructor video. However, my code is not working. Please spot out. Thanks.

<?php 
class Product 
{
    //property
    public $name = "default_name";
    public $price = 0;
    public $desc = "default description";

    function __construct ($name, $price, $desc) {
        $this->name = $name;
        $this->price = $price;
        $this->desc = $desc;    

    }
    //method
    public function getInfo() {
        return "Product Name: " . $this->name;  
    }

    //class definations go here!    
}

$p = new Product();
$shirt = new Product("Space 1", 20, "cool");
$soda = new Product("space 2", 233, "hot");

echo $shirt->getInfo();

?>

1 Answer

Jayden Spring
Jayden Spring
8,625 Points
Jayden Spring
Jayden Spring
8,625 Points

Change your construct to have default values of '' for each variable; function __construct($name='', $price = 0, $desc='') { if($name != '' && $price > 0 && $desc != '') { ...Code... } }

The problem with your script is you are calling the constructor without any arguments when you create an instance of the class and assign it to $p - PHP would throw an error.