How to check in Drupal Checkbox CCK?

Question

Drupal

How to check the checkbox for activity?
In the block, check the checkbox in the node.
If the checkbox is checked, then output one, do not put another.
I can't google

Answer 1

If you just need to find out the value of this parameter (on the server side), then just do $node->field_field_name['und'][0]['value'] (may differ depending on your settings). Or just do var_dump($node->field_field_name) to find out exactly where to look

Answer 2

Use dpm (); you will see a lot of interesting things from the devel module .