3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $a = 42; } $foo = new Foo; $closure = function() { var_dump($this->a); }; $foo_closure = $closure->bindTo($foo,"Foo"); $foo_closure(); /* 42 */
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kveK6
function name:  (null)
number of ops:  13
compiled vars:  !0 = $foo, !1 = $closure, !2 = $foo_closure
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $3      'Foo'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $3
    5     3        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FkveK6%3A5%240'
          4        ASSIGN                                                   !1, ~6
    7     5        INIT_METHOD_CALL                                         !1, 'bindTo'
          6        SEND_VAR_EX                                              !0
          7        SEND_VAL_EX                                              'Foo'
          8        DO_FCALL                                      0  $8      
          9        ASSIGN                                                   !2, $8
    9    10        INIT_DYNAMIC_CALL                                        !2
         11        DO_FCALL                                      0          
         12      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FkveK6%3A5%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kveK6
function name:  {closure}
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   INIT_FCALL                                               'var_dump'
          1        FETCH_THIS                                       $0      
          2        FETCH_OBJ_R                                      ~1      $0, 'a'
          3        SEND_VAL                                                 ~1
          4        DO_ICALL                                                 
          5      > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FkveK6%3A5%240

Class Foo: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
203.91 ms | 1395 KiB | 15 Q