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<?php $var = 10; $f = function($let)use($var){ return ++$let + $var; }; $var = 15; echo $f(10);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/PSeMY
function name:  (null)
number of ops:  10
compiled vars:  !0 = $var, !1 = $f
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 10
    4     1        DECLARE_LAMBDA_FUNCTION                          ~3      [0]
          2        BIND_LEXICAL                                             ~3, !0
          3        ASSIGN                                                   !1, ~3
    8     4        ASSIGN                                                   !0, 15
    9     5        INIT_DYNAMIC_CALL                                        !1
          6        SEND_VAL_EX                                              10
          7        DO_FCALL                                      0  $6      
          8        ECHO                                                     $6
          9      > RETURN                                                   1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/PSeMY
function name:  {closure}
number of ops:  6
compiled vars:  !0 = $let, !1 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
          1        BIND_STATIC                                              !1
    5     2        PRE_INC                                          ~2      !0
          3        ADD                                              ~3      ~2, !1
          4      > RETURN                                                   ~3
    6     5*     > RETURN                                                   null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.0.0


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