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<?php class Foo { private $foo = 'foo'; } $getState = function () { return $this->foo; }; $foo = new Foo(); $getStateBound = $getState->bindTo($foo, $foo); var_dump($getStateBound()); $viaStatic = Closure::bind($getState, $foo, $foo); var_dump($viaStatic());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/rrY4u
function name:  (null)
number of ops:  27
compiled vars:  !0 = $getState, !1 = $foo, !2 = $getStateBound, !3 = $viaStatic
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   DECLARE_LAMBDA_FUNCTION                          ~4      [0]
          1        ASSIGN                                                   !0, ~4
   10     2        NEW                                              $6      'Foo'
          3        DO_FCALL                                      0          
          4        ASSIGN                                                   !1, $6
   12     5        INIT_METHOD_CALL                                         !0, 'bindTo'
          6        SEND_VAR_EX                                              !1
          7        SEND_VAR_EX                                              !1
          8        DO_FCALL                                      0  $9      
          9        ASSIGN                                                   !2, $9
   13    10        INIT_FCALL                                               'var_dump'
         11        INIT_DYNAMIC_CALL                                        !2
         12        DO_FCALL                                      0  $11     
         13        SEND_VAR                                                 $11
         14        DO_ICALL                                                 
   15    15        INIT_STATIC_METHOD_CALL                                  'Closure', 'bind'
         16        SEND_VAR                                                 !0
         17        SEND_VAR                                                 !1
         18        SEND_VAR                                                 !1
         19        DO_FCALL                                      0  $13     
         20        ASSIGN                                                   !3, $13
   16    21        INIT_FCALL                                               'var_dump'
         22        INIT_DYNAMIC_CALL                                        !3
         23        DO_FCALL                                      0  $15     
         24        SEND_VAR                                                 $15
         25        DO_ICALL                                                 
         26      > RETURN                                                   1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/rrY4u
function name:  {closure}
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   FETCH_THIS                                       $0      
          1        FETCH_OBJ_R                                      ~1      $0, 'foo'
          2      > RETURN                                                   ~1
          3*     > RETURN                                                   null

End of Dynamic Function 0

Class Foo: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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