Webastor - Programming Tips and Tricks

Hello everyone, I would like to ask you a little problem that has bothered me for quite a long time, why do we define copy constructor and overloaded assignment operator separately when both of these are available by default? Thank you kindly to answer me as soon as possible.

Hi all, I would like to submit an urgent question, why does php put inter-thread communication methods wait() and notify() in the object class instead of the thread class? It is urgent, thank you very much give me your opinion quickly.