通过“ – >”逐个调用类的功能的方式因为该函数返回同一个对象的类.见下面的例子.你会得到这个

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;

}

}

整个魔法是返回$这个;