php的生命周期就像我们人类一样

hello i want to know about life cycle of php just like human being i guess each and every think has its life cycle At first we were an infant after that grow and becomer yonger then teenage , adult, oldage i just want to know that like we human have lifecycle every lanuage or think as its life cycle i just want to know about the life cycle of php

please provide how and what should be start and end of php i know its only written within <?php ?> but i just want to know each step of php programming please provide solution

I have a graphical answer for your question.

PHP life cycle goes kind of like this: