Hi Robert,
Am 23.11.23 um 21:31 schrieb Robert Landers:
However, we can make certain methods private anyway, namely,
constructors (I haven't gone hunting for other built-in methods yet).
This is perfectly allowed:
class P {
public function __construct($name = 'waldo') {
echo "hello $name\n";
}
}
class C extends P {
private function __construct($name = 'world') {
parent::__construct($name);
echo "goodbye $name\n";
}
}
you can enforce a public constructor by using an interface:
```
interface X {
public function __construct (int $foo);
}
class A implements X {
public function __construct (int $foo) {
echo __CLASS__ . ": $foo\n";
}
}
class B extends A {
private function __construct (int $foo) {
echo __CLASS__ . ": $foo\n";
}
}
```
Which will give you the following error:
PHP Fatal error: Access level to B::__construct() must be public (as in
class X) in test.php on line 14
That way you put the definition of the constructor into the contract.
Greets
Dennis
