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<?php class DataContainer implements IteratorAggregate { // create an external Iterator: protected $data; public function __construct(array $data) { $this->data = $data; } public function &getIterator() { foreach ($this->data as &$value) { yield $value; } } } $dataContainer = new DataContainer([77, 78, 79]); foreach ($dataContainer as &$value) { echo $value *= -1,"\n"; } var_dump($dataContainer); // unset $value or can get strange bugs. //unset($value); foreach($dataContainer as $value); var_dump($dataContainer,$value);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 6, Position 2 = 11
Branch analysis from position: 6
2 jumps found. (Code = 126) Position 1 = 7, Position 2 = 11
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
Branch analysis from position: 11
2 jumps found. (Code = 77) Position 1 = 16, Position 2 = 18
Branch analysis from position: 16
2 jumps found. (Code = 78) Position 1 = 17, Position 2 = 18
Branch analysis from position: 17
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 18
Branch analysis from position: 11
filename:       /in/Nq2Sd
function name:  (null)
number of ops:  24
compiled vars:  !0 = $dataContainer, !1 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   DECLARE_CLASS                                            'datacontainer'
   17     1        NEW                                              $2      'DataContainer'
          2        SEND_VAL_EX                                              <array>
          3        DO_FCALL                                      0          
          4        ASSIGN                                                   !0, $2
   18     5      > FE_RESET_RW                                      $5      !0, ->11
          6    > > FE_FETCH_RW                                              $5, !1, ->11
   19     7    >   ASSIGN_OP                                     3  ~6      !1, -1
          8        ECHO                                                     ~6
          9        ECHO                                                     '%0A'
   18    10      > JMP                                                      ->6
         11    >   FE_FREE                                                  $5
   21    12        INIT_FCALL                                               'var_dump'
         13        SEND_VAR                                                 !0
         14        DO_ICALL                                                 
   24    15      > FE_RESET_R                                       $8      !0, ->18
         16    > > FE_FETCH_R                                               $8, !1, ->18
         17    > > JMP                                                      ->16
         18    >   FE_FREE                                                  $8
   25    19        INIT_FCALL                                               'var_dump'
         20        SEND_VAR                                                 !0
         21        SEND_VAR                                                 !1
         22        DO_ICALL                                                 
         23      > RETURN                                                   1

Class DataContainer:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Nq2Sd
function name:  __construct
number of ops:  4
compiled vars:  !0 = $data
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   RECV                                             !0      
    6     1        ASSIGN_OBJ                                               'data'
          2        OP_DATA                                                  !0
    7     3      > RETURN                                                   null

End of function __construct

Function getiterator:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 3, Position 2 = 6
Branch analysis from position: 3
2 jumps found. (Code = 126) Position 1 = 4, Position 2 = 6
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 6
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 6
filename:       /in/Nq2Sd
function name:  getIterator
number of ops:  8
compiled vars:  !0 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   GENERATOR_CREATE                                         
   10     1        FETCH_OBJ_W                                      $1      'data'
          2      > FE_RESET_RW                                      $2      $1, ->6
          3    > > FE_FETCH_RW                                              $2, !0, ->6
   11     4    >   YIELD                                                    !0
   10     5      > JMP                                                      ->3
          6    >   FE_FREE                                                  $2
   14     7      > GENERATOR_RETURN                                         

End of function getiterator

End of class DataContainer.

Generated using Vulcan Logic Dumper, using php 8.0.0


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