Assume there is an A controller and a B controller. How can the variables defined in the A controller be called by the B controller after being assigned by the function of the A controller? I've tried using global variables, but it doesn't work either. Please give me an answer!
2
0
0
Let controller B inherit controller A
class?A?{
????public?$a;
????public?function?__construct()?{
????????$this->a?=?1;
????}
}
class?B?extends?A?{
????public?function?fb()?{
????????echo?$this->a;
????}
}
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
