如何在codeigniter模型中使用方法重载

Question

我想在Codeigniter的模型中创建重载方法。我知道像JAVA这样的php不支持方法重载。所以我想知道哪一个是最好的方法，从下面两个或请建议，如果有任何其他正确的方式

function mymethod($p1 = null, $p2 = null){
   if (isset($p1)){
      echo "My method has 1st parameter<br>";
   }
   if (isset($p2)){
      echo "My method has 2nd parameter also";
   }
   rest code..
}

OR

public function __call($m , $p)
{
    switch($m)
    {
        case "mymethod":
            $count = count($p);
            switch($count)
            {
                case "0":
                    return "You are passing 0 argument";
                    break;
                case "1":
                    return "You are passing 1 argument";
                    break;
                case "2":
                    return "You are passing 2 parameter";
                    break;
                case "3":
                    return "You are passing 3 parameter";
                    break;
                default:
                    throw new exception("Bad argument");
            }
        default:
            throw new exception("Function $m does not exists ");
    }
}

Answer 1

方法重载

1。）方法的参数数量不同。 2.）参数类型不同（如 将float的参数更改为int）。

以上是方法重载的条件

function mymethod($p1 = null, $p2 = null, $p3 = null){
   if (isset($p1)){
      echo "My method has 1st parameter<br>";
   }
   if (isset($p2)){
      echo "My method has 2nd parameter also";
   }
   rest code..
}