In the PhpStorm IDE from JetBrains, you can use /** @var SomeObj[] */
, e.g.:
/**
* @return SomeObj[]
*/
function getSomeObjects() {...}
The phpdoc documentation recommends this method:
specified containing a single type, the Type definition informs the reader of the type of each array element. Only one Type is then expected as element for a given array.
Example:
@return int[]