[TYPO3-english] TS: is there a way to count() for elements GP-variable?

[Bert Hiddink [BENDOO e-work solutions]]

Hello,

I have a variable like this:

&setOfIds=23,56,234,5,77

I receive this Get-var within TS like:
{GP:setOfIds}

However, is there a way to count the amount of separated elements with 
this var, something like "count({GP:setOfIds})" ?

The result should be "5" in this example...

Thanks in advance!

Regards,
Bert