Why the name constant is not recognised in the static function f2() ?
class Foo {
protected static function f1($s) {
echo "doing $s";
}
}
class Bar extends Foo {
const name = 'leo';
public static function f2() {
Foo::f1(name);
}
}
$bar = new Bar();
$bar->f2();
I get the following error:
Notice: Use of undefined constant name - assumed 'name' in ...
What am I doing wrong ?
Quite simple, the name constant is undefined. What you defined is a class constant. You can access it through either:
Bar::name
or from within the Bar class or any of its descendants
self::name
or from within the Bar class or any of its descendants with 5.3+ only:
static::name
So, change the call to:
public static function f2() {
Foo::f1(self::name);
}
And that should do it for you...
Oh, and one other note. Typically, the naming convention is that constants should be all uppercase. So it should be const NAME = 'leo';, and referenced using self::NAME. You don't have to do it that way, but I do think it helps readability...
