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<?php function my_retarded_escape(string $str): string { $parts = explode("\00", $str); $parts = array_map([ 'SQLite3', 'escapeString' ], $parts); $str = implode("' || x'00' || '", $parts); return $str; } $db = new PDO('sqlite::memory:', '', '', array( PDO::ATTR_EMULATE_PREPARES => false, PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION )); $db->exec(' CREATE TABLE foo(input TEXT);'); $text = "tro\x00lolo"; $s = $db->prepare("INSERT INTO foo(`input`) VALUES ( ? ),({$db->quote($text)}),('" . my_retarded_escape($text) . "');"); $s->execute([$text]); var_dump($db->query("SELECT * FROM foo")->fetchAll(PDO::FETCH_ASSOC));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/umFH1
function name:  (null)
number of ops:  40
compiled vars:  !0 = $db, !1 = $text, !2 = $s
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   13     0  E >   NEW                                                  $3      'PDO'
          1        SEND_VAL_EX                                                  'sqlite%3A%3Amemory%3A'
          2        SEND_VAL_EX                                                  ''
          3        SEND_VAL_EX                                                  ''
   14     4        SEND_VAL_EX                                                  <array>
   13     5        DO_FCALL                                          0          
          6        ASSIGN                                                       !0, $3
   17     7        INIT_METHOD_CALL                                             !0, 'exec'
          8        SEND_VAL_EX                                                  '%0ACREATE+TABLE+foo%28input+TEXT%29%3B'
          9        DO_FCALL                                          0          
   20    10        ASSIGN                                                       !1, 'tro%00lolo'
   22    11        INIT_METHOD_CALL                                             !0, 'prepare'
         12        ROPE_INIT                                         3  ~10     'INSERT+INTO+foo%28%60input%60%29+VALUES+%28+%3F+%29%2C%28'
         13        INIT_METHOD_CALL                                             !0, 'quote'
         14        SEND_VAR_EX                                                  !1
         15        DO_FCALL                                          0  $8      
         16        ROPE_ADD                                          1  ~10     ~10, $8
         17        ROPE_END                                          2  ~9      ~10, '%29%2C%28%27'
         18        INIT_FCALL                                                   'my_retarded_escape'
         19        SEND_VAR                                                     !1
         20        DO_FCALL                                          0  $12     
         21        CONCAT                                               ~13     ~9, $12
         22        CONCAT                                               ~14     ~13, '%27%29%3B'
         23        SEND_VAL_EX                                                  ~14
         24        DO_FCALL                                          0  $15     
         25        ASSIGN                                                       !2, $15
   23    26        INIT_METHOD_CALL                                             !2, 'execute'
         27        INIT_ARRAY                                           ~17     !1
         28        SEND_VAL_EX                                                  ~17
         29        DO_FCALL                                          0          
   24    30        INIT_FCALL                                                   'var_dump'
         31        INIT_METHOD_CALL                                             !0, 'query'
         32        SEND_VAL_EX                                                  'SELECT+%2A+FROM+foo'
         33        DO_FCALL                                          0  $19     
         34        INIT_METHOD_CALL                                             $19, 'fetchAll'
         35        SEND_VAL_EX                                                  2
         36        DO_FCALL                                          0  $20     
         37        SEND_VAR                                                     $20
         38        DO_ICALL                                                     
         39      > RETURN                                                       1

Function my_retarded_escape:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/umFH1
function name:  my_retarded_escape
number of ops:  17
compiled vars:  !0 = $str, !1 = $parts
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   RECV                                                 !0      
    5     1        INIT_FCALL                                                   'explode'
          2        SEND_VAL                                                     '%00'
          3        SEND_VAR                                                     !0
          4        DO_ICALL                                             $2      
          5        ASSIGN                                                       !1, $2
    6     6        INIT_FCALL                                                   'array_map'
    7     7        SEND_VAL                                                     <array>
    9     8        SEND_VAR                                                     !1
    6     9        DO_ICALL                                             $4      
         10        ASSIGN                                                       !1, $4
   10    11        FRAMELESS_ICALL_2                implode             ~6      '%27+%7C%7C+x%2700%27+%7C%7C+%27', !1
         12        ASSIGN                                                       !0, ~6
   11    13        VERIFY_RETURN_TYPE                                           !0
         14      > RETURN                                                       !0
   12    15*       VERIFY_RETURN_TYPE                                           
         16*     > RETURN                                                       null

End of function my_retarded_escape

Generated using Vulcan Logic Dumper, using php 8.5.0


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