php方法重载实现

<?php
//php的特性限制了它支持方法重载，这是一种模拟重载的方法

class Overloader
{
    public function __call($method, $p)
    {
        echo "
参数：".count($p)."个
";
        if($method == 'listdata')
        {
            if(count($p)==1)
            $this->listdataOne($p[0]);
        if(count($p)==2)
            $this->listdataTwo($p[0],$p[1]);
        }
    }

    public function listdataOne($args)
    {
        echo $args;
        echo "

---

";
    }

    public function listdataTwo($arg1,$arg2)
    {
        echo $arg1+$arg2;
        echo "

---

";
    }
}

$o = new Overloader();

echo "

---

";
$o->listdata(1);
$o->listdata(2,3);
?>

查看功能演示：