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<?php $enc1 = base64_encode(181); $f = $enc1[array_rand(str_split($enc1))]; $s = $enc1[array_rand(str_split($enc1))]; $enc2 = base64_encode($f.$enc1.$s); $dec1 = base64_decode($enc2); $len = strlen($dec1); $dec2 = substr($dec1, 1, $len-2); $dec3 = base64_decode($dec2); echo $enc1."\n"; echo $enc2."\n"; echo "----\n"; echo $dec1."\n"; echo $dec2."\n"; echo $dec3."\n"; var_dump(preg_match('/[0-9]+/i', $dec3));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GPLSv
function name:  (null)
number of ops:  62
compiled vars:  !0 = $enc1, !1 = $f, !2 = $s, !3 = $enc2, !4 = $dec1, !5 = $len, !6 = $dec2, !7 = $dec3
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'base64_encode'
          1        SEND_VAL                                                 181
          2        DO_ICALL                                         $8      
          3        ASSIGN                                                   !0, $8
    4     4        INIT_FCALL                                               'array_rand'
          5        INIT_FCALL                                               'str_split'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $10     
          8        SEND_VAR                                                 $10
          9        DO_ICALL                                         $11     
         10        FETCH_DIM_R                                      ~12     !0, $11
         11        ASSIGN                                                   !1, ~12
    5    12        INIT_FCALL                                               'array_rand'
         13        INIT_FCALL                                               'str_split'
         14        SEND_VAR                                                 !0
         15        DO_ICALL                                         $14     
         16        SEND_VAR                                                 $14
         17        DO_ICALL                                         $15     
         18        FETCH_DIM_R                                      ~16     !0, $15
         19        ASSIGN                                                   !2, ~16
    6    20        INIT_FCALL                                               'base64_encode'
         21        CONCAT                                           ~18     !1, !0
         22        CONCAT                                           ~19     ~18, !2
         23        SEND_VAL                                                 ~19
         24        DO_ICALL                                         $20     
         25        ASSIGN                                                   !3, $20
    9    26        INIT_FCALL                                               'base64_decode'
         27        SEND_VAR                                                 !3
         28        DO_ICALL                                         $22     
         29        ASSIGN                                                   !4, $22
   10    30        STRLEN                                           ~24     !4
         31        ASSIGN                                                   !5, ~24
   11    32        INIT_FCALL                                               'substr'
         33        SEND_VAR                                                 !4
         34        SEND_VAL                                                 1
         35        SUB                                              ~26     !5, 2
         36        SEND_VAL                                                 ~26
         37        DO_ICALL                                         $27     
         38        ASSIGN                                                   !6, $27
   12    39        INIT_FCALL                                               'base64_decode'
         40        SEND_VAR                                                 !6
         41        DO_ICALL                                         $29     
         42        ASSIGN                                                   !7, $29
   14    43        CONCAT                                           ~31     !0, '%0A'
         44        ECHO                                                     ~31
   15    45        CONCAT                                           ~32     !3, '%0A'
         46        ECHO                                                     ~32
   16    47        ECHO                                                     '----%0A'
   17    48        CONCAT                                           ~33     !4, '%0A'
         49        ECHO                                                     ~33
   18    50        CONCAT                                           ~34     !6, '%0A'
         51        ECHO                                                     ~34
   19    52        CONCAT                                           ~35     !7, '%0A'
         53        ECHO                                                     ~35
   21    54        INIT_FCALL                                               'var_dump'
         55        INIT_FCALL                                               'preg_match'
         56        SEND_VAL                                                 '%2F%5B0-9%5D%2B%2Fi'
         57        SEND_VAR                                                 !7
         58        DO_ICALL                                         $36     
         59        SEND_VAR                                                 $36
         60        DO_ICALL                                                 
         61      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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