Attention

TYPO3 v8 has reached its end-of-life March 31st, 2020 and is not maintained by the community anymore. Looking for a stable version? Use the version switch on the top left.

You can order Extended Long Term Support (ELTS) here: TYPO3 ELTS.

boolean

Data type:

boolean

Description:

Possible values for boolean variables are 1 and 0 meaning TRUE and FALSE.

Everything else is evaluated to one of these values by PHP: Non-empty strings (except 0 [zero]) are treated as TRUE, empty strings are evaluated to FALSE.

Examples:

dummy.enable = 0   # false, preferred notation
dummy.enable = 1   # true,  preferred notation
dummy.enable =     # false, because the value is empty