add('msg', 'textarea', [ 'label' => 'Message', 'attr' => [ 'oninput' => 'countCharacters(this.value)', 'id' => 'smsMsg', ], ])->add('character_count', 'static', [ 'label' => false, 'default_value' => 'Character(s) 0/918 (English), 0 SMS message(s)', 'attr' => [ 'id' => 'character_count', 'style' => 'font-size: smaller;padding: 0 0 0 5px;margin-top: -20px;', ] ]); $this->add('submit', 'submit', [ 'label' => trans('core::core.form.save'), 'attr' => [ 'class' => 'btn btn-primary waves-effect float-right', 'style' => 'float: right;', 'id' => 'campaugn_sms_msg',] ]); } }