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<?php function evilExtract(array $arr) { foreach ($arr as $var => $val) { global $$var; $$var = $val; } } $_post = array('foo' => 'something', 'bar' => 'something else'); evilExtract($_post); var_dump($foo);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3BhOk
function name:  (null)
number of ops:  8
compiled vars:  !0 = $_post, !1 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   ASSIGN                                                   !0, <array>
   11     1        INIT_FCALL                                               'evilextract'
          2        SEND_VAR                                                 !0
          3        DO_FCALL                                      0          
   12     4        INIT_FCALL                                               'var_dump'
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                                 
          7      > RETURN                                                   1

Function evilextract:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 10
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 10
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
filename:       /in/3BhOk
function name:  evilExtract
number of ops:  12
compiled vars:  !0 = $arr, !1 = $val, !2 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1      > FE_RESET_R                                       $3      !0, ->10
          2    > > FE_FETCH_R                                       ~4      $3, !1, ->10
          3    >   ASSIGN                                                   !2, ~4
    5     4        FETCH_W                      global lock         $6      !2
          5        FETCH_W                      local               $7      !2
          6        ASSIGN_REF                                               $7, $6
    6     7        FETCH_W                      local               $8      !2
          8        ASSIGN                                                   $8, !1
    4     9      > JMP                                                      ->2
         10    >   FE_FREE                                                  $3
    8    11      > RETURN                                                   null

End of function evilextract

Generated using Vulcan Logic Dumper, using php 8.0.0


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