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<?php class myIterator implements Iterator { private $position = 0; private $array = array( "firstelement", "secondelement", "lastelement", ); public function __construct() { $this->position = 0; } function rewind() { $this->position = 0; } function current() { return $this->array[$this->position]; } function key() { return $this->position; } function next() { ++$this->position; } function valid() { return isset($this->array[$this->position]); } } $it = new myIterator; var_dump($it->key()); var_dump(key($it)); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4EZrT
function name:  (null)
number of ops:  16
compiled vars:  !0 = $it
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   DECLARE_CLASS                                                'myiterator'
   36     1        NEW                                                  $1      'myIterator'
          2        DO_FCALL                                          0          
          3        ASSIGN                                                       !0, $1
   37     4        INIT_FCALL                                                   'var_dump'
          5        INIT_METHOD_CALL                                             !0, 'key'
          6        DO_FCALL                                          0  $4      
          7        SEND_VAR                                                     $4
          8        DO_ICALL                                                     
   38     9        INIT_FCALL                                                   'var_dump'
         10        INIT_FCALL                                                   'key'
         11        SEND_VAR                                                     !0
         12        DO_ICALL                                             $6      
         13        SEND_VAR                                                     $6
         14        DO_ICALL                                                     
   40    15      > RETURN                                                       1

Class myIterator:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4EZrT
function name:  __construct
number of ops:  3
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   12     0  E >   ASSIGN_OBJ                                                   'position'
          1        OP_DATA                                                      0
   13     2      > RETURN                                                       null

End of function __construct

Function rewind:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4EZrT
function name:  rewind
number of ops:  3
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   16     0  E >   ASSIGN_OBJ                                                   'position'
          1        OP_DATA                                                      0
   17     2      > RETURN                                                       null

End of function rewind

Function current:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4EZrT
function name:  current
number of ops:  5
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   20     0  E >   FETCH_OBJ_R                                          ~1      'position'
          1        FETCH_OBJ_R                                          ~0      'array'
          2        FETCH_DIM_R                                          ~2      ~0, ~1
          3      > RETURN                                                       ~2
   21     4*     > RETURN                                                       null

End of function current

Function key:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4EZrT
function name:  key
number of ops:  3
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   24     0  E >   FETCH_OBJ_R                                          ~0      'position'
          1      > RETURN                                                       ~0
   25     2*     > RETURN                                                       null

End of function key

Function next:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4EZrT
function name:  next
number of ops:  2
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   28     0  E >   PRE_INC_OBJ                                                  'position'
   29     1      > RETURN                                                       null

End of function next

Function valid:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4EZrT
function name:  valid
number of ops:  5
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   32     0  E >   FETCH_OBJ_R                                          ~1      'position'
          1        FETCH_OBJ_IS                                         ~0      'array'
          2        ISSET_ISEMPTY_DIM_OBJ                             0  ~2      ~0, ~1
          3      > RETURN                                                       ~2
   33     4*     > RETURN                                                       null

End of function valid

End of class myIterator.

Generated using Vulcan Logic Dumper, using php 8.5.0


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