php 的重寫 和 重載

<?php
//php重載和重寫
class base{

function out()
{
    echo 'base print';
}
}

class a extends base{
function out()
{
    echo 'a print';
}
}

$a  = new a();
$a->out();


class p
{
    function get()
    {
       $arg = func_get_args();

       $count = count($arg);

       if($count == 1)
       {
           echo $arg[0];
       }else if($count == 2)
       {
           echo $arg[0].$arg[1];
       }

    }
}


$p = new p();

$p->get('one');

$p->get('two',3939393);



exit();