How to render a checkbox that is checked by default with the symfony2 Form Builder?

How to render a checkbox that is checked by default with the symfony2 Form Builder?

checkbox symfony formbuilder

symfony

Validate checkbox not mapped to entity in a symfony2 form

php forms validation symfony checkbox

symfony

at least one checkbox selected Symfony2

forms symfony checkbox

symfony

How to override a checkbox in Symfony's Twig Form template

forms symfony checkbox overriding twig

symfony

Symfony2: Set label of checkbox from Class Field

symfony checkbox formbuilder

symfony

Symfony2 many-to-many checkboxes

php symfony checkbox doctrine

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