[TYPO3-dev] Get value bits from checkbox array

[Stefan Frömken]

In my extension I have 4 checkboxes in my flexform

Checkbox1 value 1
Checkbox2 value 2
Checkbox3 value 3
Checkbox4 value 4

In database I found a value of 8.

OK...I know how the binary system works. So 8 meens that my checkbox4 
was checked.

But before I programm such a converting tool on my self I want to ask 
you if there was such a function in TYPO3 included allready.

Stefan