[ETS|LuucEarth]

I believe you are correct after I look at the documentation again.

static fetchPhrase (line 333)
Fetches a rendered phrase.

If the phrase is not in the local phrase cache, then the phrasekey cache is loaded and purged.

return: - The translated phrase
access: public
static string fetchPhrase (string $phrasegroup, string $phrasekey, [array $parameters = array()])
string $phrasegroup:
The phrase group where the phrase is located
string $phrasekey:
The phrasekey of the phrase
array $parameters: mixed - Array of parameters to parse into the phrase


That will teach me to code until 4am lol


***EDIT***

PHP Code:

$title=vB_Phrase::fetchPhrase('cprofilefield',$key."_title", NULL); 


That solved the warning Thanks kh99 and Ozzy47 for all the help Product nearly done now!