Question

Let me first clarify that I’m not much familiar with PHP language, since I have been working with Java web and Android. Following is a simple PHP class where I’m trying to invoke explicitly a parameterized constructor.

final class Demo
{
    private $x;
    private $y;             

    public function __constructor($x, $y)
    {
        $this->x=$x;
        $this->y=$y;                
    }   

    public function show()
    {
        echo "Sum = ", $this->x+$this->y;   
    }
}

$d=new Demo(10, 20);
$d->show();

It however displays Sum = 0 means that the constructor is not being invoked (In Java, C# and languages alike, it’s very handy to invoke constructors somewhat in such way). How can I then invoke the specified parameterized constructor in the above class?

Answer 1

The name of the constructor is __construct(). __constructor() is just a curious looking method.