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<?php class DataContainer implements IteratorAggregate { protected $data; public function __construct(array $data) { $this->data = $data; } public function &getIterator() { foreach ($this->data as &$value) { echo 'in foreach ...'; yield $value; } } } $dataContainer = new DataContainer([77, 78, 79]); var_dump($dataContainer); foreach ($dataContainer as &$value) { $value *= -1; } var_dump($dataContainer,$value); // -77,-78,&int-79 // Must unset $value ... foreach($dataContainer as $value){ var_dump($value); } var_dump($dataContainer);// -77,-78,&int-78
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 9, Position 2 = 12
Branch analysis from position: 9
2 jumps found. (Code = 126) Position 1 = 10, Position 2 = 12
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
Branch analysis from position: 12
2 jumps found. (Code = 77) Position 1 = 18, Position 2 = 23
Branch analysis from position: 18
2 jumps found. (Code = 78) Position 1 = 19, Position 2 = 23
Branch analysis from position: 19
1 jumps found. (Code = 42) Position 1 = 18
Branch analysis from position: 18
Branch analysis from position: 23
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 23
Branch analysis from position: 12
filename:       /in/gvmNA
function name:  (null)
number of ops:  28
compiled vars:  !0 = $dataContainer, !1 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   DECLARE_CLASS                                            'datacontainer'
   14     1        NEW                                              $2      'DataContainer'
          2        SEND_VAL_EX                                              <array>
          3        DO_FCALL                                      0          
          4        ASSIGN                                                   !0, $2
   15     5        INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
   16     8      > FE_RESET_RW                                      $6      !0, ->12
          9    > > FE_FETCH_RW                                              $6, !1, ->12
   17    10    >   ASSIGN_OP                                     3          !1, -1
   16    11      > JMP                                                      ->9
         12    >   FE_FREE                                                  $6
   19    13        INIT_FCALL                                               'var_dump'
         14        SEND_VAR                                                 !0
         15        SEND_VAR                                                 !1
         16        DO_ICALL                                                 
   21    17      > FE_RESET_R                                       $9      !0, ->23
         18    > > FE_FETCH_R                                               $9, !1, ->23
   22    19    >   INIT_FCALL                                               'var_dump'
         20        SEND_VAR                                                 !1
         21        DO_ICALL                                                 
   21    22      > JMP                                                      ->18
         23    >   FE_FREE                                                  $9
   25    24        INIT_FCALL                                               'var_dump'
         25        SEND_VAR                                                 !0
         26        DO_ICALL                                                 
         27      > RETURN                                                   1

Class DataContainer:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/gvmNA
function name:  __construct
number of ops:  4
compiled vars:  !0 = $data
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
    5     1        ASSIGN_OBJ                                               'data'
          2        OP_DATA                                                  !0
    6     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 = 7
Branch analysis from position: 3
2 jumps found. (Code = 126) 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 = 161) Position 1 = -2
Branch analysis from position: 7
filename:       /in/gvmNA
function name:  getIterator
number of ops:  9
compiled vars:  !0 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   GENERATOR_CREATE                                         
    8     1        FETCH_OBJ_W                                      $1      'data'
          2      > FE_RESET_RW                                      $2      $1, ->7
          3    > > FE_FETCH_RW                                              $2, !0, ->7
    9     4    >   ECHO                                                     'in+foreach+...'
   10     5        YIELD                                                    !0
    8     6      > JMP                                                      ->3
          7    >   FE_FREE                                                  $2
   12     8      > GENERATOR_RETURN                                         

End of function getiterator

End of class DataContainer.

Generated using Vulcan Logic Dumper, using php 8.0.0


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