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<?php class Obj implements ArrayAccess { private $container = array(); public function __construct() { $this->container = array( "one" => 1, "two" => 2, "three" => 3, ); } public function offsetSet($offset, $value): void { if (is_null($offset)) { $this->container[] = $value; } else { $this->container[$offset] = $value; } } public function offsetExists($offset): bool { return isset($this->container[$offset]); } public function offsetUnset($offset): void { unset($this->container[$offset]); } public function offsetGet($offset): mixed { return isset($this->container[$offset]) ? $this->container[$offset] : null; } } $obj = new Obj; $obj[] = 3; $obj[] = 4; print_r($obj);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v26Bh
function name:  (null)
number of ops:  12
compiled vars:  !0 = $obj
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   DECLARE_CLASS                                                'obj'
   35     1        NEW                                                  $1      'Obj'
          2        DO_FCALL                                          0          
          3        ASSIGN                                                       !0, $1
   37     4        ASSIGN_DIM                                                   !0
          5        OP_DATA                                                      3
   38     6        ASSIGN_DIM                                                   !0
          7        OP_DATA                                                      4
   40     8        INIT_FCALL                                                   'print_r'
          9        SEND_VAR                                                     !0
         10        DO_ICALL                                                     
         11      > RETURN                                                       1

Class Obj:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v26Bh
function name:  __construct
number of ops:  3
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    7     0  E >   ASSIGN_OBJ                                                   'container'
    8     1        OP_DATA                                                      <array>
   12     2      > RETURN                                                       null

End of function __construct

Function offsetset:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 8
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 11
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v26Bh
function name:  offsetSet
number of ops:  12
compiled vars:  !0 = $offset, !1 = $value
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   14     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
   15     2        TYPE_CHECK                                        2          !0
          3      > JMPZ                                                         ~2, ->8
   16     4    >   FETCH_OBJ_W                                          $3      'container'
          5        ASSIGN_DIM                                                   $3
          6        OP_DATA                                                      !1
   15     7      > JMP                                                          ->11
   18     8    >   FETCH_OBJ_W                                          $5      'container'
          9        ASSIGN_DIM                                                   $5, !0
         10        OP_DATA                                                      !1
   20    11    > > RETURN                                                       null

End of function offsetset

Function offsetexists:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v26Bh
function name:  offsetExists
number of ops:  7
compiled vars:  !0 = $offset
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   22     0  E >   RECV                                                 !0      
   23     1        FETCH_OBJ_IS                                         ~1      'container'
          2        ISSET_ISEMPTY_DIM_OBJ                             0  ~2      ~1, !0
          3        VERIFY_RETURN_TYPE                                           ~2
          4      > RETURN                                                       ~2
   24     5*       VERIFY_RETURN_TYPE                                           
          6*     > RETURN                                                       null

End of function offsetexists

Function offsetunset:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v26Bh
function name:  offsetUnset
number of ops:  4
compiled vars:  !0 = $offset
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   26     0  E >   RECV                                                 !0      
   27     1        FETCH_OBJ_UNSET                                      $1      'container'
          2        UNSET_DIM                                                    $1, !0
   28     3      > RETURN                                                       null

End of function offsetunset

Function offsetget:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 8
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/v26Bh
function name:  offsetGet
number of ops:  12
compiled vars:  !0 = $offset
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   30     0  E >   RECV                                                 !0      
   31     1        FETCH_OBJ_IS                                         ~1      'container'
          2        ISSET_ISEMPTY_DIM_OBJ                             0          ~1, !0
          3      > JMPZ                                                         ~2, ->8
          4    >   FETCH_OBJ_R                                          ~3      'container'
          5        FETCH_DIM_R                                          ~4      ~3, !0
          6        QM_ASSIGN                                            ~5      ~4
          7      > JMP                                                          ->9
          8    >   QM_ASSIGN                                            ~5      null
          9    > > RETURN                                                       ~5
   32    10*       VERIFY_RETURN_TYPE                                           
         11*     > RETURN                                                       null

End of function offsetget

End of class Obj.

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