One of the check types included in wp doctor is Option_Value, or the ability to assert that a given option is a specific value. The check type is in use by a couple of the default diagnostic checks, and you can use the Option_Value check type in your custom doctor.yml configuration file.
As an example, here are two checks using Option_Value, one which ensures the blog is public and the other which ensures users can't register:
option-blog-public:
check: Option_Value
options:
option: blog_public
value: 1
option-users-can-register:
check: Option_Value
options:
option: users_can_register
value: 0
Run together, you might see:
$ wp doctor check --config=option-value.yml --all
+---------------------------+---------+-------------------------------------------------+
| name | status | message |
+---------------------------+---------+-------------------------------------------------+
| option-blog-public | error | Site is private but expected to be public. |
| option-users-can-register | success | Option 'users_can_register' is '0' as expected. |
+---------------------------+---------+-------------------------------------------------+
The Option_Value check type accepts the following options:
- 'option': Name of the option.
- 'value': Option is expected to be a specific value.