Symfony - checkboxtype - symfony

Question

i have problem with checkboxtype in symfony framework. My code for creation form is:
$form = $this->createFormBuilder()
->add('table_records', CheckboxType::class)
->add('save', SubmitType::class, array('label' => 'delete'))
->getForm();
My problem is array in checkbox, because i need checkboxname for example table_records[], for many checkboxes.

Answer 1

Use a ChoiceType with and set expanded to true.
$builder->add('table_records', ChoiceType::class, array(
'choices' => array(),
'expanded' => true
))

Answer 2

Something like this, using ChoiceType is the right way to do this.
$form = $this->createFormBuilder()
->add('table_records', ChoiceType::class, array())
->add('save', array('label' => 'delete'))
->getForm();

Answer 3

From your question it not clear if you need:
1. Group of Multiple Checkbox , will not be named as you ask
2. Collection of Checkbox , each will be named with a index number
1.
Result example:
<form>
<input type="checkbox" name="table_records[]" value="1"/>
<input type="checkbox" name="table_records[]" value="2"/>
...
</form>
You need:
->add('table_records',ChoiceType::class,[
'multiple'=>true,
'expanded'=>true,
'choices'=>[
'label1'=>'value1',
'label2'=>'value2'
]
])
Look at multiple + expanded both are true and this will make the ChoiceType render Checkbox inside the form.
2. Result Example:
<form>
<input type="checkbox" name="table_records[0]" value="1"/>
<input type="checkbox" name="table_records[1]" value="2"/>
...
</form>
Then you need:
->add('table_records',CollectionType::class,[
'entry_type'=>CheckboxType::class,
'entry_options'=>[ //Options for CheckboxType goes here
'...'
]
])