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3 years ago

class P_Class {
    public static $val = "Parent";
    public static function setVal($val){
        static::$val = $val;
    }
    public static function getVal(){
        return static::$val;
    }
}

class C_Class extends P_Class{}

C_Class::setVal("Child");
var_dump(C_Class::getVal());
var_dump(P_Class::getVal());

Output:
string(5) "Child"
string(5) "Child"

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