Globalizing a Variable/Function

[GameWizard]

Inside member.php, line 277, I found:

$fetch_userinfo_options = (
    FETCH_USERINFO_AVATAR | FETCH_USERINFO_LOCATION |
    FETCH_USERINFO_PROFILEPIC | FETCH_USERINFO_SIGPIC |
    FETCH_USERINFO_USERCSS | FETCH_USERINFO_ISFRIEND
);

I copied and pasted this info a plugin with the hook postbit_display_start and it had no effect unfortunately, I received no errors though.

What else could I be missing in my plugin code that isn't allowing this function to run? I have tried including both these in my postbit template and neither appear:

<if condition="$userinfo['isfriend']">
content
</if>

<if condition="$prepared['isfriend']">
content
</if>