PhpStorm warns about “Expected Class, got Class[]”

Question

As I know I can't define array of class as function argument.

Like:

someFunc(someClass[] $some) {}

But I get PhpStorm warning about wrong argument when pass the array of class items. Can someone explain to me this warning?

Example of my code:

public function getContent(Item $item)
{
   ...
}

// $items is items array of class Item
$content = getContent($items)

php is not java. this topic is now and then discussed by the php developers as far as I know. But not yet implemented — Sindhara, Mar 21 '19 at 19:34
https://stackoverflow.com/questions/778564/phpdoc-type-hinting-for-array-of-objects — Don't Panic, Mar 21 '19 at 20:53
It isn't a PhpStorm issue. The code [triggers a fatal error when you run it](https://3v4l.org/00ups) since types don't match. — Álvaro González, Apr 07 '19 at 13:41

score 3 · Accepted Answer · answered Mar 21 '19 at 19:46

PhpStorm understands phpDoc tags.

So you can do something like this:

/**
 * @param Item[] $item The item to get the content from.
 */
public function getContent(array $item)
{
   ...
}

But you must use array in code since that's what the type is. But PhpStorm will also understand your phpDoc annotation to provide better hints as you type.

PhpStorm warns about “Expected Class, got Class[]”

1 Answers1