Resource Types
Calendar Functions
Calendar
PHP Manual

# Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

`CAL_GREGORIAN` (integer)
`CAL_JULIAN` (integer)
`CAL_JEWISH` (integer)
`CAL_FRENCH` (integer)
`CAL_NUM_CALS` (integer)
`CAL_DOW_DAYNO` (integer)
`CAL_DOW_SHORT` (integer)
`CAL_DOW_LONG` (integer)
`CAL_MONTH_GREGORIAN_SHORT` (integer)
`CAL_MONTH_GREGORIAN_LONG` (integer)
`CAL_MONTH_JULIAN_SHORT` (integer)
`CAL_MONTH_JULIAN_LONG` (integer)
`CAL_MONTH_JEWISH` (integer)
`CAL_MONTH_FRENCH` (integer)

The following constants are available since PHP 4.3.0 :

`CAL_EASTER_DEFAULT` (integer)
`CAL_EASTER_ROMAN` (integer)
`CAL_EASTER_ALWAYS_GREGORIAN` (integer)
`CAL_EASTER_ALWAYS_JULIAN` (integer)

The following constants are available since PHP 5.0.0 :

`CAL_JEWISH_ADD_ALAFIM_GERESH` (integer)
`CAL_JEWISH_ADD_ALAFIM` (integer)
`CAL_JEWISH_ADD_GERESHAYIM` (integer)