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<?php echo cal_days_in_month(CAL_GREGORIAN,7,2013);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ltZoW
function name:  (null)
number of ops:  8
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL_BY_NAME                                       'cal_days_in_month'
          1        FETCH_CONSTANT                                   ~0      'CAL_GREGORIAN'
          2        SEND_VAL_EX                                              ~0
          3        SEND_VAL_EX                                              7
          4        SEND_VAL_EX                                              2013
          5        DO_FCALL                                      0  $1      
          6        ECHO                                                     $1
          7      > RETURN                                                   1

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