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<?php function foo1() { // resource intensive tasks: yield 1; yield 2; yield 3; } function wrapItWithADifferentApi() { foreach(foo1() as $foo) { if($foo === 2) { return; } yield $foo; } } foreach(wrapItWithADifferentApi() as $foo) { var_dump($foo); }
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/eaDaQ
function name:  (null)
number of ops:  10
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   19     0  E >   INIT_FCALL                                               'wrapitwithadifferentapi'
          1        DO_FCALL                                      0  $1      
          2      > FE_RESET_R                                       $2      $1, ->8
          3    > > FE_FETCH_R                                               $2, !0, ->8
   20     4    >   INIT_FCALL                                               'var_dump'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                                 
   19     7      > JMP                                                      ->3
          8    >   FE_FREE                                                  $2
   21     9      > RETURN                                                   1

Function foo1:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/eaDaQ
function name:  foo1
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   GENERATOR_CREATE                                         
    5     1        YIELD                                                    1
    6     2        YIELD                                                    2
    7     3        YIELD                                                    3
    8     4      > GENERATOR_RETURN                                         

End of function foo1

Function wrapitwithadifferentapi:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 11
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 11
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 11
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 11
filename:       /in/eaDaQ
function name:  wrapItWithADifferentApi
number of ops:  13
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   GENERATOR_CREATE                                         
   11     1        INIT_FCALL                                               'foo1'
          2        DO_FCALL                                      0  $1      
          3      > FE_RESET_R                                       $2      $1, ->11
          4    > > FE_FETCH_R                                               $2, !0, ->11
   12     5    >   IS_IDENTICAL                                             !0, 2
          6      > JMPZ                                                     ~3, ->9
   13     7    >   FE_FREE                                                  $2
          8      > GENERATOR_RETURN                                         
   15     9    >   YIELD                                                    !0
   11    10      > JMP                                                      ->4
         11    >   FE_FREE                                                  $2
   17    12      > GENERATOR_RETURN                                         

End of function wrapitwithadifferentapi

Generated using Vulcan Logic Dumper, using php 8.0.0


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