How to get all content types having a certain field programmatically in Drupal 7?

Question

I want to list all content types (not nodes) that have a special field for example "field_user_select". How do I do this programmatically in drupal 7?

Thanks

Answer 1

You should be able to use field_read_instances to return all field instances of a given field_name. From that, get the entity bundles.

Answer 2

I didn't found correct function, but you can create own function, take code from function field_ui_fields_list() in field_ui.admin.inc file, add argument for filtering by field name...