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<?php function escape_input($input) { return str_replace("'", "''", $input); } //$a = "\' OR 1 = 1 --"; $a=CONCAT(CHAR(39),CHAR(32),CHAR(111),CHAR(114),CHAR(32),CHAR(39),CHAR(49),CHAR(39),CHAR(61),CHAR(39),CHAR(49)); echo escape_input($a); echo "\n"; $b = chr(0x27)."admin'--"; //echo escape_input($b); echo addslashes($b); echo "\n"; ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1mT0l
function name:  (null)
number of ops:  59
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   INIT_FCALL_BY_NAME                                       'CONCAT'
          1        INIT_FCALL_BY_NAME                                       'CHAR'
          2        SEND_VAL_EX                                              39
          3        DO_FCALL                                      0  $2      
          4        SEND_VAR_NO_REF_EX                                       $2
          5        INIT_FCALL_BY_NAME                                       'CHAR'
          6        SEND_VAL_EX                                              32
          7        DO_FCALL                                      0  $3      
          8        SEND_VAR_NO_REF_EX                                       $3
          9        INIT_FCALL_BY_NAME                                       'CHAR'
         10        SEND_VAL_EX                                              111
         11        DO_FCALL                                      0  $4      
         12        SEND_VAR_NO_REF_EX                                       $4
         13        INIT_FCALL_BY_NAME                                       'CHAR'
         14        SEND_VAL_EX                                              114
         15        DO_FCALL                                      0  $5      
         16        SEND_VAR_NO_REF_EX                                       $5
         17        INIT_FCALL_BY_NAME                                       'CHAR'
         18        SEND_VAL_EX                                              32
         19        DO_FCALL                                      0  $6      
         20        SEND_VAR_NO_REF_EX                                       $6
         21        INIT_FCALL_BY_NAME                                       'CHAR'
         22        SEND_VAL_EX                                              39
         23        DO_FCALL                                      0  $7      
         24        SEND_VAR_NO_REF_EX                                       $7
         25        INIT_FCALL_BY_NAME                                       'CHAR'
         26        SEND_VAL_EX                                              49
         27        DO_FCALL                                      0  $8      
         28        SEND_VAR_NO_REF_EX                                       $8
         29        INIT_FCALL_BY_NAME                                       'CHAR'
         30        SEND_VAL_EX                                              39
         31        DO_FCALL                                      0  $9      
         32        SEND_VAR_NO_REF_EX                                       $9
         33        INIT_FCALL_BY_NAME                                       'CHAR'
         34        SEND_VAL_EX                                              61
         35        DO_FCALL                                      0  $10     
         36        SEND_VAR_NO_REF_EX                                       $10
         37        INIT_FCALL_BY_NAME                                       'CHAR'
         38        SEND_VAL_EX                                              39
         39        DO_FCALL                                      0  $11     
         40        SEND_VAR_NO_REF_EX                                       $11
         41        INIT_FCALL_BY_NAME                                       'CHAR'
         42        SEND_VAL_EX                                              49
         43        DO_FCALL                                      0  $12     
         44        SEND_VAR_NO_REF_EX                                       $12
         45        DO_FCALL                                      0  $13     
         46        ASSIGN                                                   !0, $13
    7    47        INIT_FCALL                                               'escape_input'
         48        SEND_VAR                                                 !0
         49        DO_FCALL                                      0  $15     
         50        ECHO                                                     $15
    8    51        ECHO                                                     '%0A'
    9    52        ASSIGN                                                   !1, '%27admin%27--'
   11    53        INIT_FCALL                                               'addslashes'
         54        SEND_VAR                                                 !1
         55        DO_ICALL                                         $17     
         56        ECHO                                                     $17
   12    57        ECHO                                                     '%0A'
   15    58      > RETURN                                                   1

Function escape_input:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1mT0l
function name:  escape_input
number of ops:  8
compiled vars:  !0 = $input
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    3     1        INIT_FCALL                                               'str_replace'
          2        SEND_VAL                                                 '%27'
          3        SEND_VAL                                                 '%27%27'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $1      
          6      > RETURN                                                   $1
    4     7*     > RETURN                                                   null

End of function escape_input

Generated using Vulcan Logic Dumper, using php 8.0.0


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