Forum:If exists

Is there a way to make a template ifexists? You would put I tried to make but it always results in Text if exists. It's not essential, but it would be nice to have a custom text if a page exists or if it doesn't. For example, I could have it say Foo (please help us by ~foo~@creating this page@) if it does not exist or Foo if it doesn't exist. Thanks, Iggyvolz 01:09, February 11, 2012 (UTC)
 * Hey, I may be completely misreading this -- but are you aware of the #ifexist parser? Check out this. 01:30, February 11, 2012 (UTC)
 * Oops! I heard about it, but I though it was #ifexists!  Thanks, Iggyvolz 02:06, February 11, 2012 (UTC)