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<?php class A { public function f() { static function ($x) { var_dump($x); }; $x(1); } } (new A())->f();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jEFvM
function name:  (null)
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   NEW                                              $0      'A'
          1        DO_FCALL                                      0          
          2        INIT_METHOD_CALL                                         $0, 'f'
          3        DO_FCALL                                      0          
          4      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FjEFvM%3A5%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jEFvM
function name:  {closure}
number of ops:  5
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   RECV                                             !0      
          1        INIT_FCALL                                               'var_dump'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
          4      > RETURN                                                   null

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

Class A:
Function f:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jEFvM
function name:  f
number of ops:  6
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
          0  E >   DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FjEFvM%3A5%240'
          1        FREE                                                     ~1
    6     2        INIT_DYNAMIC_CALL                                        !0
          3        SEND_VAL_EX                                              1
          4        DO_FCALL                                      0          
    7     5      > RETURN                                                   null

End of function f

End of class A.

Generated using Vulcan Logic Dumper, using php 8.0.0


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