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<?php function & genRefInner() { $var = 1; yield $var; } function & genRefOuter() { return genRefInner(); } foreach(genRefOuter() as $i) { var_dump($i); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 8
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 8
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
filename:       /in/sFR11
function name:  (null)
number of ops:  10
compiled vars:  !0 = $i
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   12     0  E >   INIT_FCALL                                                   'genrefouter'
          1        DO_FCALL                                          0  $1      
          2      > FE_RESET_R                                           $2      $1, ->8
          3    > > FE_FETCH_R                                                   $2, !0, ->8
   13     4    >   INIT_FCALL                                                   'var_dump'
          5        SEND_VAR                                                     !0
          6        DO_ICALL                                                     
   12     7      > JMP                                                          ->3
          8    >   FE_FREE                                                      $2
   14     9      > RETURN                                                       1

Function genrefinner:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/sFR11
function name:  genRefInner
number of ops:  4
compiled vars:  !0 = $var
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   GENERATOR_CREATE                                             
    4     1        ASSIGN                                                       !0, 1
    5     2        YIELD                                                        !0
    6     3      > GENERATOR_RETURN                                             

End of function genrefinner

Function genrefouter:
Finding entry points
Branch analysis from position: 0
Return found
filename:       /in/sFR11
function name:  genRefOuter
number of ops:  4
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    9     0  E >   INIT_FCALL                                                   'genrefinner'
          1        DO_FCALL                                          0  $0      
          2      > RETURN_BY_REF                                                $0
   10     3*     > RETURN_BY_REF                                                null

End of function genrefouter

Generated using Vulcan Logic Dumper, using php 8.5.0


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