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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; } } } $dataContainer = new DataContainer([77, 78, 79]); var_dump($dataContainer); 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);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 9, Position 2 = 14
Branch analysis from position: 9
2 jumps found. (Code = 126) Position 1 = 10, Position 2 = 14
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
Branch analysis from position: 14
2 jumps found. (Code = 77) Position 1 = 19, Position 2 = 21
Branch analysis from position: 19
2 jumps found. (Code = 78) Position 1 = 20, Position 2 = 21
Branch analysis from position: 20
1 jumps found. (Code = 42) Position 1 = 19
Branch analysis from position: 19
Branch analysis from position: 21
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 21
Branch analysis from position: 14
filename:       /in/o770A
function name:  (null)
number of ops:  26
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        INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
   19     8      > FE_RESET_RW                                      $6      !0, ->14
          9    > > FE_FETCH_RW                                              $6, !1, ->14
   20    10    >   ASSIGN_OP                                     3  ~7      !1, -1
         11        ECHO                                                     ~7
         12        ECHO                                                     '%0A'
   19    13      > JMP                                                      ->9
         14    >   FE_FREE                                                  $6
   22    15        INIT_FCALL                                               'var_dump'
         16        SEND_VAR                                                 !0
         17        DO_ICALL                                                 
   25    18      > FE_RESET_R                                       $9      !0, ->21
         19    > > FE_FETCH_R                                               $9, !1, ->21
         20    > > JMP                                                      ->19
         21    >   FE_FREE                                                  $9
   26    22        INIT_FCALL                                               'var_dump'
         23        SEND_VAR                                                 !0
         24        DO_ICALL                                                 
         25      > RETURN                                                   1

Class DataContainer:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/o770A
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/o770A
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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