There's no difference between them in a final class, so use whichever you want.
Both calls will return `A`.
```
<?php
class Dad {
static function getStatic() {
return new static;
}
static function getSelf() {
return new self;
}
}
trait Useless {
static function getStatic() {
return new static;
}
}
final class A extends Dad {
use Useless;
static function getSelf() {
return new self;
}
}
var_dump(A::getStatic()::class);
var_dump(A::getSelf()::class);
```
[Example][1]
dharman
[1]: https://3v4l.org/CsmAr#v8.0.8
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
There's no difference between them in a final class, so use whichever you want.
Both calls will return `A`.
```
<?php
class Dad {
static function getStatic() {
return new static;
}
static function getSelf() {
return new self;
}
}
trait Useless {
static function getStatic() {
return new static;
}
}
final class A extends Dad {
use Useless;
static function getSelf() {
return new self;
}
}
var_dump(A::getStatic()::class);
var_dump(A::getSelf()::class);
```
[Example][1]
dharman
[1]: https://3v4l.org/CsmAr#v8.0.8