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<?php function byRef(&$variable = 5) { echo ++$variable; } byRef();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3Yq5t
function name:  (null)
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   INIT_FCALL                                               'byref'
          1        DO_FCALL                                      0          
          2      > RETURN                                                   1

Function byref:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3Yq5t
function name:  byRef
number of ops:  4
compiled vars:  !0 = $variable
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV_INIT                                        !0      5
    3     1        PRE_INC                                          ~1      !0
          2        ECHO                                                     ~1
    4     3      > RETURN                                                   null

End of function byref

Generated using Vulcan Logic Dumper, using php 8.0.0


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