原文はこちら。個人的に PdoSessionHandler と OptionsResolver の変更が厄介だと思います(´・ω・`) Form "choice", "date", "datetime" および "time" タイプのオプション empty_value が非推奨となりました。代わりに placeholder を使いましょう。 変更前: $form->add('category', 'choice', array( 'choices' => array('politics', 'media'), 'empty_value' => 'Select a category...', ));
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