Stream - PHP samples

gistfile1.txt

// Q1

<?php
class A {
    public static function who() {
        echo __CLASS__;
    }
    public static function test() {
        self::who();
    }
}

class B extends A {
    public static function who() {
        echo __CLASS__;
    }
}

B::test();
?>

// Q2

var_dump(42 == 042);
var_dump(‘042’ == 42);
var_dump(‘042’ === 42);