Is the static variable changed before the call?

{Code...} How can I change the value of $ name before return in Test?

Class Test {static $ name = 'app'; static $ age = 30 ;}

$ Name = Test: $ name; echo $ name;

How can I change the value of $ name before return in Test?

Reply content:

Class Test {static $ name = 'app'; static $ age = 30 ;}

$ Name = Test: $ name; echo $ name;

How can I change the value of $ name before return in Test?

Static variables are also called static variables.

Why should I change the value of the static variable before use? The original intention of setting static variables is to call them as an initial value. you can assign a value to the static variables dynamically before using the value.