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<?php function numbers() { $numbers = [1, 2, 3]; $letters = letters(); foreach($numbers as $number) { yield $number; yield $letters->current(); $letters->next(); } } function letters() { $letters = ['A', 'B', 'C']; foreach ($letters as $letter) { yield $letter; yield numbers(); } } foreach (numbers() as $x) { echo $x . PHP_EOL; }
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/eOg91
function name:  (null)
number of ops:  9
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   26     0  E >   INIT_FCALL                                               'numbers'
          1        DO_FCALL                                      0  $1      
          2      > FE_RESET_R                                       $2      $1, ->7
          3    > > FE_FETCH_R                                               $2, !0, ->7
   27     4    >   CONCAT                                           ~3      !0, '%0A'
          5        ECHO                                                     ~3
   26     6      > JMP                                                      ->3
          7    >   FE_FREE                                                  $2
   28     8      > RETURN                                                   1

Function numbers:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 6, Position 2 = 14
Branch analysis from position: 6
2 jumps found. (Code = 78) Position 1 = 7, Position 2 = 14
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
Branch analysis from position: 14
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 14
filename:       /in/eOg91
function name:  numbers
number of ops:  16
compiled vars:  !0 = $numbers, !1 = $letters, !2 = $number
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   GENERATOR_CREATE                                         
    5     1        ASSIGN                                                   !0, <array>
    6     2        INIT_FCALL_BY_NAME                                       'letters'
          3        DO_FCALL                                      0  $4      
          4        ASSIGN                                                   !1, $4
    8     5      > FE_RESET_R                                       $6      !0, ->14
          6    > > FE_FETCH_R                                               $6, !2, ->14
    9     7    >   YIELD                                                    !2
   10     8        INIT_METHOD_CALL                                         !1, 'current'
          9        DO_FCALL                                      0  $8      
         10        YIELD                                                    $8
   11    11        INIT_METHOD_CALL                                         !1, 'next'
         12        DO_FCALL                                      0          
    8    13      > JMP                                                      ->6
         14    >   FE_FREE                                                  $6
   13    15      > GENERATOR_RETURN                                         

End of function numbers

Function letters:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 9
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 9
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 9
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 9
filename:       /in/eOg91
function name:  letters
number of ops:  11
compiled vars:  !0 = $letters, !1 = $letter
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   15     0  E >   GENERATOR_CREATE                                         
   17     1        ASSIGN                                                   !0, <array>
   19     2      > FE_RESET_R                                       $3      !0, ->9
          3    > > FE_FETCH_R                                               $3, !1, ->9
   20     4    >   YIELD                                                    !1
   21     5        INIT_FCALL                                               'numbers'
          6        DO_FCALL                                      0  $5      
          7        YIELD                                                    $5
   19     8      > JMP                                                      ->3
          9    >   FE_FREE                                                  $3
   23    10      > GENERATOR_RETURN                                         

End of function letters

Generated using Vulcan Logic Dumper, using php 8.0.0


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