如何在PHP5中链接对象：$ this-> foo-> bar-> baz（）

Question

How do I make chained objects in PHP5 classes? Examples:

$myclass->foo->bar->baz();
$this->foo->bar->baz();
Not: $myclass->foo()->bar()->baz();

See also:
http://www.talkphp.com/advanced-php-programming/1163-php5-method-chaining.html

Answer 1

As long as your $myclass has a member/property that is an instance itself it will work just like that.

class foo {
   public $bar;
}

class bar {
    public function hello() {
       return "hello world";
    }
}

$myclass = new foo();
$myclass->bar = new bar();
print $myclass->bar->hello();