Description
array 
cal_info ( [int calendar])
     cal_info() returns information on the
     specified calendar or on all supported
     calendars if no calendar is specified.
    
     Calendar information is returned as an array containing the
     elements calname, calsymbol,
     month, abbrevmonth and
     maxdaysinmonth.
    
     If no calendar is specified information on all
     supported calendars is returned as an array. This functionality
     will be available beginning with PHP 5.