Programming PHP, 3rd Edition

Name

date_sunset

Synopsis

mixed date_sunset(int timestamp[, int format[, float latitude[, float longitude
    [, float zenith[, float gmt_offset]]]]])

Returns the time of the sunset for the day in timestamp; false on failure. The format parameter determines the format the time is returned as (with a default of SUNFUNCS_RET_STRING), while the latitude, longitude, zenith, and gmt_offset parameters provide a specific location. They default to values given in the PHP configuration options (php.ini). Parameters include:

SUNFUNCS_RET_STRING	Returns the value as a string; for example, “19:02”
SUNFUNCS_RET_DOUBLE	Returns the value as a float; for example, 19.033
SUNFUNCS_RET_TIMESTAMP	Returns the value as a Unix epochal timestamp