如何使在同一行多次调用类的方法？(How to make multiple calls to cla

2019-07-30 12:29发布

我在PHP的问题。在我的PHP文件，我创建了以下行：

$foo = $wke->template->notify()
                     ->type("ERROR")
                     ->errno("0x14")
                     ->msg("You are not logged.")
                     ->page("login.tpl");

最后，我需要我的$foo变量将返回此：

$foo->type = "ERROR" 
$foo->errno= "0x14" 
$foo->msg= "You are not logged." 
$foo->page= "login.tpl"

请注意， $wke->template是我需要调用notify()元。

Answer 1:

只是通过调用一个一类函数的方式“ - >”，因为该函数返回的类的同一个对象。请参见下面的例子。您将获得本

class Wke {

    public $type;
    public $errno;
    public $msg;
    public $page;

    public $template = $this;

    public function notify(){
        return $this;
    }

    public function errorno($error){
        $this->errno = $error;
        return $this; // returning same object so you can call the another function in sequence by just ->
    }
    public function type($type){
        $this->type = $type;
        return $this;
    }
    public function msg($msg){
        $this->msg = $msg;
        return $this;
    }
    public function page($page){
        $this->page = $page;
        return $this;
    }
}

整个魔术的return $this;