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<?php function a () { yield 1; yield 2; b(); } function b() { yield 'a'; yield 'b'; } foreach(a() as $item) { echo $item,"\n"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 7
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 7
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
filename:       /in/5cT3c
function name:  (null)
number of ops:  9
compiled vars:  !0 = $item
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   16     0  E >   INIT_FCALL                                               'a'
          1        DO_FCALL                                      0  $1      
          2      > FE_RESET_R                                       $2      $1, ->7
          3    > > FE_FETCH_R                                               $2, !0, ->7
   17     4    >   ECHO                                                     !0
          5        ECHO                                                     '%0A'
   16     6      > JMP                                                      ->3
          7    >   FE_FREE                                                  $2
   18     8      > RETURN                                                   1

Function a:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/5cT3c
function name:  a
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   GENERATOR_CREATE                                         
    3     1        YIELD                                                    1
    5     2        YIELD                                                    2
    7     3        INIT_FCALL_BY_NAME                                       'b'
          4        DO_FCALL                                      0          
    8     5      > GENERATOR_RETURN                                         

End of function a

Function b:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/5cT3c
function name:  b
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   GENERATOR_CREATE                                         
   11     1        YIELD                                                    'a'
   13     2        YIELD                                                    'b'
   14     3      > GENERATOR_RETURN                                         

End of function b

Generated using Vulcan Logic Dumper, using php 8.0.0


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