Esempi in PHP per Circle::Area

Esempio n. 1

File: Tutorial - 194.php Progetto: Jscott27/PHP-Beginners

<?php

class Circle
{
    const pi = 3.14;
    public function Area($radius)
    {
        return self::pi * ($radius * $radius);
    }
}
$get = new Circle();
echo $get->Area(5);

Esempio n. 2

File: Constants.php Progetto: charleseagle/PHP-Practice

<?php

class Circle
{
    const pi = 3.14159;
    public function Area($radius)
    {
        return self::pi * $radius ** 2;
    }
}
//echo Circle::pi;
$circle = new Circle();
echo $circle->Area(100);