PHP代码 - 不知道它是否有所作为

Question

i have the following code snippet, in an appliation working with Zend Framework. I know what Zend Date does.. thats not the problem.

But the coder simply calls "$date" , and i dont know if this does something?

         $date = new Zend_Date(time());
         $date->addDay(1);
         $date; 
         // save date, or do something else
         ...

Answer 1

I can't imagine a situation where simply stating a variable, whether it be an object, string, or otherwise, would perform some kind of action. It might just be a mistake.