class testParent { public function f1() { echo "poly" . "<br>"; } public function f2() { echo "niru" . "<br>"; } } class testChild { public function f1($a) { echo "{$a}" . "<br>"; } function f2($a) { echo "{$a}" . "<br>"; } } $a = new testChild(); $b = new testParent(); $b->f1(); $b->f2(); $a->f1("Polymorphism"); $a->f2("Inheritence"); ?>
function testFunction() { echo self::$var2 = 3; echo parent::$var1 = 5; }