Hi.i was reading a tutorial on PHP OOP and came across

two object declaration for same class as follows

what is the difference between these declarations. tutorial did not explained this. i am new to php and whatever i have coded i always used $obj2 type declaration and never faced problem.

but now i am confused.

The list of arguments when instantiating an object is entirely optional so instead of providing an empty argument list [new className()] you can provide no argument list [new className].