PLUS(category24-kurz-tips.html) - phpMan

getdate (3)          - convert a date-plus-time string to broken-down time
getdate_err (3)      - convert a date-plus-time string to broken-down time
getdate_r (3)        - convert a date-plus-time string to broken-down time
log1p (3)            - logarithm of 1 plus argument
log1pf (3)           - logarithm of 1 plus argument
log1pl (3)           - logarithm of 1 plus argument
nisplus_table (5)    - Postfix NIS+ client