PHP Method OverRidding example program

<?php
echo "<br/>Method OverRidding supporting example<br/>";

class A {
    public function fun1($rec)
    {
        echo "Parent : ".$rec."<br/>";
    }
}
class B extends A
{
    public function fun1($rec)
    {
        echo "Child : ".$rec."<br/>";
    }
}
$oA=new A();
$oB=new B();
$oA->fun1('Passing value to parent');
$oB->fun1('Passing Value to Child');
?>