Hi,
As 8.1 adds readonly properties I wonder which build-in properties
should be defined readonly.
Currently I could find build-in readonly properties only on PDO and DOM.
Very incomplete list where readonly properties could make sense:
1. Enum properties:
enum Test:string {
case TEST = 'test';
}
$case = TEST::TEST;
$refl = (new ReflectionObject($case))->getProperty('value');
var_dump($refl->isReadOnly()); // false
var_dump($refl->isPublic()); // true
$case->value = 'foo'; // Fatal error: Uncaught Error: Enum properties
are immutable
2. DateInterval->days
$interval = (new DateTime())->diff(new DateTime());
var_dump($interval->days); // 0
$refl = (new ReflectionObject($interval))->getProperty('days');
var_dump($refl->isReadOnly()); // false
var_dump($refl->isPublic()); // true
$interval->days = 2;
var_dump($interval->days); // 0
3. Exception properties
Exception properties are protected but does it really make sense to be
able to modify an exception property after initialization?
I know this would be a BC break :(
Thanks for all the excellent work - Can't wait for 8.1 :)
Marc
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