[Zachery]

I don't know why anyone didn't tell you, the code you linked is:

1. Not a phrase
2. template code, and specifically a vbulletin defined variable.

$show['member'] checks to see if a user has a valid userid. Assuming you've included the vBulletin global.php to get you into the vBulletin environment, the same can be done in php:

PHP Code:

if($bbuserinfo['userid'])
{
// This user is a member
    DoSomething();
}
else
{
// this user is not a member
    DoSomethingElse();
}