forked from https://github.com/symfony/symfony
This PR was squashed before being merged into the 2.7 branch (closes #21267). Discussion ---------- [Form] Fix ChoiceType to ensure submitted data is not nested unnecessarily | Q | A | ------------- | --- | Branch? | 2.7 | Bug fix? | yes | New feature? | no | BC breaks? | no | Deprecations? | no | Tests pass? | yes | Fixed tickets | - | License | MIT | Doc PR | - Fixed ChoiceType to protect against some problem caused by treating of array. Let's say we have the choice-form like: ```php $form = $factory->create(ChoiceType, null, [ 'choices' => [ 'A', 'B', 'C', ], 'expanded' => true, 'multiple' => true, ]); ``` Then, submit data like this: ```php $form->submit([ [], // unnecessality nested ]); ``` (Yes, I agree in most cases these situation doesn't happen, but can be) Then, we get `array_flip(): Can only flip STRING and INTEGER values!` error at [here]( |
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