Find all fields that are multi language

[gebeer]

Hello,

I would like to find all fields that are multi-language.

My code

$langFields = new FieldsArray;
foreach ($fields as $f) {
	if($f->type instanceof FieldtypePageTitleLanguage || $f->type instanceof FieldtypeTextareaLanguage || $f->type instanceof FieldtypeTextLanguage) {
		$langFields->add($f);
	}
}

Is there a more generic way of how I can determine whether a field is multi language, other than checking  "$f->type instanceof" for all three fieldtypes?

[BitPoet]

Untested, but every multi language field class should implement FieldtypeLanguageInterface, which you should be able to check for using instanceof.

if($f->type instanceof FieldtypeLanguageInterface) $langFields->add($f);

[gebeer]

@BitPoet

Thanks a lot. I just tested this and it brings the desired results.