[Form] Incorrect description for choice_attr option of ChoiceType field

[mvar]

Current choice_attr description:

Use this to add additional HTML attributes to each choice. This can be an array of attributes (if they are the same for each choice), a callable or a property path (just like choice_label).

Actually it's not possible to set attributes for all choices at once. You need to redefine attributes for each choice separately:

'choice_attr' => [
    'Choice A' => ['class' => 'foo'],
    'Choice B' => ['class' => 'foo'],
    ...
    'Choice Z' => ['class' => 'foo'],
],

Please correct me if I'm wrong.

[HeahDude]

Hi @mvar, actually you're right about that. But you can do:

'choice_attr' => function () { return array('class' => 'foo'); },

I've already open an issue symfony/symfony#18318 and a PR to change that.

See also #6393.

I think we can close here. Thank you.

[mvar]

@HeahDude thanks for comment. I'm closing this issue as the problem is known :)