How to call child class in parent method?

Question

OOP

Hello.
There is this code:
echo (new Select->setAttr('name', 'list'))->add( (new Option())->setText('item1') )->show()
I don't know how to call the child class Option in the add method as described above.

Answer 1

Most likely you don't mean "call the class" but accept it.
I will assume that Option::setText() returns void, and Select::add() takes Select(Option).
You either need to return a reference to the instance in setText() (return $this) or place the text initialization in the Option class constructor and accept it in $select->add(new Option('text')).