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<?php class T { private $attr = [1,2,3]; } $t = function(){ var_dump($this->attr); }; $c1 = Closure::bind($t, new T()); $c1();die; abstract class T { static public $instanses; final private function __construct(){ } public static function getInstance() { var_dump(static::$instanses); if (!(static::$instanses instanceof static)) { static::$instanses = new static; } var_dump(static::$instanses); return static::$instanses; } } class A extends T { static public $instanses; } class B extends A { static public $instanses; } $t = A::getInstance(); var_dump($t); $t1 = B::getInstance(); var_dump($t1); new B(); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 79) Position 1 = -2
filename:       /in/QaXlY
function name:  (null)
number of ops:  29
compiled vars:  !0 = $t, !1 = $c1, !2 = $t1
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FQaXlY%3A6%240'
          1        ASSIGN                                                   !0, ~3
    9     2        INIT_STATIC_METHOD_CALL                                  'Closure', 'bind'
          3        SEND_VAR                                                 !0
          4        NEW                                              $5      'T'
          5        DO_FCALL                                      0          
          6        SEND_VAR                                                 $5
          7        DO_FCALL                                      0  $7      
          8        ASSIGN                                                   !1, $7
   10     9        INIT_DYNAMIC_CALL                                        !1
         10        DO_FCALL                                      0          
         11      > EXIT                                                     
   13    12*       DECLARE_CLASS                                            't'
   42    13*       INIT_STATIC_METHOD_CALL                                  'A', 'getInstance'
         14*       DO_FCALL                                      0  $10     
         15*       ASSIGN                                                   !0, $10
   43    16*       INIT_FCALL                                               'var_dump'
         17*       SEND_VAR                                                 !0
         18*       DO_ICALL                                                 
   45    19*       INIT_STATIC_METHOD_CALL                                  'B', 'getInstance'
         20*       DO_FCALL                                      0  $13     
         21*       ASSIGN                                                   !2, $13
   46    22*       INIT_FCALL                                               'var_dump'
         23*       SEND_VAR                                                 !2
         24*       DO_ICALL                                                 
   48    25*       NEW                                              $16     'B'
         26*       DO_FCALL                                      0          
         27*       FREE                                                     $16
   53    28*     > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FQaXlY%3A6%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QaXlY
function name:  {closure}
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   INIT_FCALL                                               'var_dump'
          1        FETCH_THIS                                       $0      
          2        FETCH_OBJ_R                                      ~1      $0, 'attr'
          3        SEND_VAL                                                 ~1
          4        DO_ICALL                                                 
    8     5      > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FQaXlY%3A6%240

Class T: [no user functions]
Class T:
Function __construct:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QaXlY
function name:  __construct
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   19     0  E > > RETURN                                                   null

End of function __construct

Function getinstance:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 12
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/QaXlY
function name:  getInstance
number of ops:  19
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   23     0  E >   INIT_FCALL                                               'var_dump'
          1        FETCH_STATIC_PROP_R          global lock         ~0      'instanses'
          2        SEND_VAL                                                 ~0
          3        DO_ICALL                                                 
   24     4        FETCH_STATIC_PROP_R          unknown             ~2      'instanses'
          5        INSTANCEOF                                       ~3      ~2
          6        BOOL_NOT                                         ~4      ~3
          7      > JMPZ                                                     ~4, ->12
   25     8    >   NEW                          static              $6      
          9        DO_FCALL                                      0          
         10        ASSIGN_STATIC_PROP                                       'instanses'
         11        OP_DATA                                                  $6
   27    12    >   INIT_FCALL                                               'var_dump'
         13        FETCH_STATIC_PROP_R          unknown             ~8      'instanses'
         14        SEND_VAL                                                 ~8
         15        DO_ICALL                                                 
   28    16        FETCH_STATIC_PROP_R          unknown             ~10     'instanses'
         17      > RETURN                                                   ~10
   29    18*     > RETURN                                                   null

End of function getinstance

End of class T.

Class A: [no user functions]
Class B: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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