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<?php function iterator() { for ($i = 1; $i <= 10; $i++) { echo $i; //yield $i; } } $generator = iterator(); var_dump($generator);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vM59U
function name:  (null)
number of ops:  7
compiled vars:  !0 = $generator
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   12     0  E >   INIT_FCALL                                               'iterator'
          1        DO_FCALL                                      0  $1      
          2        ASSIGN                                                   !0, $1
   13     3        INIT_FCALL                                               'var_dump'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                                 
          6      > RETURN                                                   1

Function iterator:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
2 jumps found. (Code = 44) Position 1 = 6, Position 2 = 2
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
2 jumps found. (Code = 44) Position 1 = 6, Position 2 = 2
Branch analysis from position: 6
Branch analysis from position: 2
filename:       /in/vM59U
function name:  iterator
number of ops:  7
compiled vars:  !0 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   ASSIGN                                                   !0, 1
          1      > JMP                                                      ->4
    7     2    >   ECHO                                                     !0
    5     3        PRE_INC                                                  !0
          4    >   IS_SMALLER_OR_EQUAL                                      !0, 10
          5      > JMPNZ                                                    ~3, ->2
   10     6    > > RETURN                                                   null

End of function iterator

Generated using Vulcan Logic Dumper, using php 8.0.0


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