3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { protected $x = 3; public function test() { $f = function () { return $this->x; }; return $f(); } } $foo = new Foo(); var_dump($foo->test());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dVjo6
function name:  (null)
number of ops:  9
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   16     0  E >   NEW                                              $1      'Foo'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   17     3        INIT_FCALL                                               'var_dump'
          4        INIT_METHOD_CALL                                         !0, 'test'
          5        DO_FCALL                                      0  $4      
          6        SEND_VAR                                                 $4
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FdVjo6%3A8%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dVjo6
function name:  {closure}
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   FETCH_THIS                                       $0      
          1        FETCH_OBJ_R                                      ~1      $0, 'x'
          2      > RETURN                                                   ~1
   10     3*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FdVjo6%3A8%240

Class Foo:
Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dVjo6
function name:  test
number of ops:  6
compiled vars:  !0 = $f
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FdVjo6%3A8%240'
          1        ASSIGN                                                   !0, ~1
   12     2        INIT_DYNAMIC_CALL                                        !0
          3        DO_FCALL                                      0  $3      
          4      > RETURN                                                   $3
   13     5*     > RETURN                                                   null

End of function test

End of class Foo.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
156.12 ms | 1395 KiB | 15 Q