Please note that the __toString() method is just an alias, as pointed out above, and that THAT method may return an array instead of a string. So in effect you might call a __toString() and expect a string, but instead receive an array.
SplFileObject::__toString
(PHP 5 >= 5.1.0, PHP 7)
SplFileObject::__toString — Alias of SplFileObject::current()
설명
public void SplFileObject::__toString
( void
)
This method is an alias of SplFileObject::current().
add a note
