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<?php $a = 1; $b = 2; $c = function() use($a, $b){ return $a+$b; }; print $c();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/HRr6X
function name:  (null)
number of ops:  10
compiled vars:  !0 = $a, !1 = $b, !2 = $c
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 1
    3     1        ASSIGN                                                   !1, 2
    4     2        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FHRr6X%3A4%240'
          3        BIND_LEXICAL                                             ~5, !0
          4        BIND_LEXICAL                                             ~5, !1
          5        ASSIGN                                                   !2, ~5
    5     6        INIT_DYNAMIC_CALL                                        !2
          7        DO_FCALL                                      0  $7      
          8        ECHO                                                     $7
          9      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FHRr6X%3A4%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/HRr6X
function name:  {closure}
number of ops:  5
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   BIND_STATIC                                              !0
          1        BIND_STATIC                                              !1
          2        ADD                                              ~2      !0, !1
          3      > RETURN                                                   ~2
          4*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FHRr6X%3A4%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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