Question about static modifiers in OOP

[eldan88]

I have learned that static variables are shared through the inheritance tree. I got the following code from a tutorial I have been watching, and was wondering why when $foo is set to 3 it echos out "3" for class One, Two, and Three?

 

 

 

 

class One {
static $foo;	
}
class Two extends One {};
class Three extends One {}
One::$foo=1;
Two::$foo=2;
Three::$foo=3;
echo One::$foo;
echo Two::$foo;
echo Three::$foo;

[The Letter E]

I have learned that static variables are shared through the inheritance tree. I got the following code from a tutorial I have been watching, and was wondering why when $foo is set to 3 it echos out "3" for class One, Two, and Three?

 

 

 

 

class One {
static $foo;    
}
class Two extends One {};
class Three extends One {}
One::$foo=1;
Two::$foo=2;
Three::$foo=3;
echo One::$foo;
echo Two::$foo;
echo Three::$foo;

 

Because, it's "static", that means whatever value it's set to, that's the value it holds across all classes. You're trying to use it dynamically, which is the opposite of static.

[eldan88]

i see what you are saying! Makes sense. Thanks!