PHP Can static:: replace self::?

Question

I am a little confused with this matter. I am designing an ORM class that tries to behave very similarly to ActiveRecord in ruby on rails, but that\'s beside the point.

Answer 1

try to use the code bellow to see the difference between self and static:

 ".self::$x."
";
        echo "static => ".static::$x;       
    }
}

class Child_ extends Parent_{
    protected static $x = "child";
}

echo "
using the Parent_ class
";
Parent_::makeTest();

echo "
using the Child_ class
";
Child_::makeTest();
?>

and you get this result:

using the Parent_ class

• self => parent
• static => parent

using the Child_ class

• self => parent
• static => child