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<?php declare(strict_types=1); function x(callable $c) { $c(); } x(new class{ function __invoke(){ echo 'test'; } });
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ZIjIA
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   INIT_FCALL                                               'x'
          1        DECLARE_ANON_CLASS                               <array> 
          2        NEW                                              $1      $0
          3        DO_FCALL                                      0          
          4        SEND_VAR                                                 $1
          5        DO_FCALL                                      0          
          6      > RETURN                                                   1

Function x:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ZIjIA
function name:  x
number of ops:  4
compiled vars:  !0 = $c
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        INIT_DYNAMIC_CALL                                        !0
          2        DO_FCALL                                      0          
    5     3      > RETURN                                                   null

End of function x

Class class@anonymous:
Function __invoke:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ZIjIA
function name:  __invoke
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   ECHO                                                     'test'
          1      > RETURN                                                   null

End of function __invoke

End of class class@anonymous.

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