$blabla->blab, just wondering what this means something to do with an object going into another?
Sorry for being a bit vague .
The arrow-like symbol has nothing to do with "an object going into another".
$blabla->blab means a call to attribute $blab in the object $blabla.$blabla->blab() means a call to method blab() in the object $blabla.Please read the Basics in PHP documentations.