Fb:if
From Facebook Developer Wiki
Description
Only renders the content inside the tag if value tag is set to true. Use this tag with fb:else.
Important: You should use this tag to gate elements in your application that already are privacy-controlled. Do not use this tag to gate content like rendered user data, as a savvy user can view the source and see what's hidden.
Attributes
| Required | Name | Type | Description | |
| optional | value | bool | Displays content if true. (Default value is false.) |
|---|
Examples
<fb:if value="true">Show this content.</fb:if>
