What's the function Traversable in PHP

Asked Mar 02 '16 at 13:27

Active Mar 02 '16 at 13:27

Viewed 115 times

PHP Traversable type hint i read this topic but i'm still confused about traversable, anyone can explain to me? and explain about this function

function MyFunction($traversable)
{
  if(!$traversable instanceof Traversable && !is_array($traversable))
  {
    throw new InvalidArgumentException(sprintf(
        'Myfunction($traversable = %s): Invalid argument $traversable.'
        ,var_export($traversable, true)
   ));
 }
}

thanks

edited May 23 '17 at 11:50

Community

asked Mar 02 '16 at 13:27

Zaki Sulistya

4

A "Traversable" object is an object that can be iterated in the same manner as an array, e.g. using a foreach() loop – Mark Baker Mar 02 '16 at 13:29
but, what's the function of traversable? – Zaki Sulistya Mar 02 '16 at 13:41
1

The purpose of Traversable is to indicate that an object can be Traversed, or iterated, e.g. by using a foreach() loop – Mark Baker Mar 02 '16 at 13:42

What's the function Traversable in PHP

0 Answers0