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<?php function f($a, &$b, &$c) { var_dump($a); $b++; $c--; } $ref_a = 10; $ref_b = 10; $arr = array('a', &$ref_a, &$ref_b); call_user_func_array('f', $arr); var_dump($arr); f(...$arr);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jXlRD
function name:  (null)
number of ops:  18
compiled vars:  !0 = $ref_a, !1 = $ref_b, !2 = $arr
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   ASSIGN                                                   !0, 10
   10     1        ASSIGN                                                   !1, 10
   11     2        INIT_ARRAY                                       ~5      'a'
          3        ADD_ARRAY_ELEMENT                                ~5      !0
          4        ADD_ARRAY_ELEMENT                                ~5      !1
          5        ASSIGN                                                   !2, ~5
   13     6        INIT_FCALL                                               'f'
          7        SEND_ARRAY                                               !2
          8        CHECK_UNDEF_ARGS                                         
          9        DO_FCALL                                      0          
   14    10        INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !2
         12        DO_ICALL                                                 
   16    13        INIT_FCALL                                               'f'
         14        SEND_UNPACK                                              !2
         15        CHECK_UNDEF_ARGS                                         
         16        DO_FCALL                                      1          
         17      > RETURN                                                   1

Function f:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jXlRD
function name:  f
number of ops:  9
compiled vars:  !0 = $a, !1 = $b, !2 = $c
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        RECV                                             !2      
    4     3        INIT_FCALL                                               'var_dump'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                                 
    5     6        PRE_INC                                                  !1
    6     7        PRE_DEC                                                  !2
    7     8      > RETURN                                                   null

End of function f

Generated using Vulcan Logic Dumper, using php 8.0.0


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