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<?php function gen1() { return [4, 5, 6]; } function gen2() { yield from gen1(); } $g = gen2(); foreach($g as $val) { var_dump($val); } var_dump($g->getReturn());
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 9
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 9
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
filename:       /in/5o2E5
function name:  (null)
number of ops:  16
compiled vars:  !0 = $g, !1 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   INIT_FCALL                                               'gen2'
          1        DO_FCALL                                      0  $2      
          2        ASSIGN                                                   !0, $2
   12     3      > FE_RESET_R                                       $4      !0, ->9
          4    > > FE_FETCH_R                                               $4, !1, ->9
          5    >   INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !1
          7        DO_ICALL                                                 
          8      > JMP                                                      ->4
          9    >   FE_FREE                                                  $4
   13    10        INIT_FCALL                                               'var_dump'
         11        INIT_METHOD_CALL                                         !0, 'getReturn'
         12        DO_FCALL                                      0  $6      
         13        SEND_VAR                                                 $6
         14        DO_ICALL                                                 
         15      > RETURN                                                   1

Function gen1:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/5o2E5
function name:  gen1
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E > > RETURN                                                   <array>
    5     1*     > RETURN                                                   null

End of function gen1

Function gen2:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/5o2E5
function name:  gen2
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   GENERATOR_CREATE                                         
    8     1        INIT_FCALL                                               'gen1'
          2        DO_FCALL                                      0  $0      
          3        YIELD_FROM                                       ~1      $0
          4        FREE                                                     ~1
    9     5      > GENERATOR_RETURN                                         

End of function gen2

Generated using Vulcan Logic Dumper, using php 8.0.0


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161.21 ms | 1403 KiB | 17 Q