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<?php $f = function () { var_dump('burp'); }; (new ReflectionMethod([$f, '__invoke']))->invoke($f);
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/SVrqi
function name:  (null)
number of ops:  11
compiled vars:  !0 = $f
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FSVrqi0x7f3c98b4f02c'
         1        ASSIGN                                                   !0, ~1
   5     2        NEW                                              $3      :-5
         3        INIT_ARRAY                                       ~4      !0
         4        ADD_ARRAY_ELEMENT                                ~4      '__invoke'
         5        SEND_VAL_EX                                              ~4
         6        DO_FCALL                                      0          
         7        INIT_METHOD_CALL                                         $3, 'invoke'
         8        SEND_VAR_EX                                              !0
         9        DO_FCALL                                      0          
        10      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FSVrqi0x7f3c98b4f02c:
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/SVrqi
function name:  {closure}
number of ops:  4
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   INIT_FCALL                                               'var_dump'
         1        SEND_VAL                                                 'burp'
         2        DO_ICALL                                                 
         3      > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FSVrqi0x7f3c98b4f02c

Generated using Vulcan Logic Dumper, using php 7.2.0