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<?php generate(); // FUNCTION function generate() { $digilist = "0123456789ABCDEFGHJKLMNPQRTUVWXY"; //now we generate a new random ID number using the substrings of the digitList string above $three_chars = NULL; $three_chars .= substr( $digilist, rand( 1, 9 ), 1 ); $three_chars .= substr( $digilist, rand( 10, 31 ), 1 ); $three_chars .= substr( $digilist, rand( 10, 31 ), 1 ); for( $i = 22; $i < 100; $i++) { $id = $three_chars . $i; $key = get_key( $id ); echo $id . ":" . $key . "\n"; } } function get_key( $id ) { $digilist = "0123456789ABCDEFGHJKLMNPQRTUVWXY"; //ok so now we need to generate an MD5 hash of our ID $hash = md5($id); //cycle through the hash 16 (length of key) times (in steps of 2 because each hex bytes is 2 digits long) $i = 0; $key = NULL; for ($i; $i < 32; $i+=2) { //here we convert the next hex value to an integer and perform a bitwise AND operation against '31' //31 is the highest substring value in our digit list. $nextdigit = hexdec(substr($hash, $i, 2)) & 31; //if 'i' is divisable by 8 (every 4 cycles) then we want to add "-" if ((($i % 8) == 0) && ($i > 0)) { $key .= "-".substr($digilist, $nextdigit, 1); } else { $key .= substr($digilist, $nextdigit, 1); } } return $key; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/AhN3c
function name:  (null)
number of ops:  3
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL_BY_NAME                                           'generate'
          1        DO_FCALL                                          0          
   49     2      > RETURN                                                       1

Function generate:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 36
Branch analysis from position: 36
2 jumps found. (Code = 44) Position 1 = 38, Position 2 = 25
Branch analysis from position: 38
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 25
2 jumps found. (Code = 44) Position 1 = 38, Position 2 = 25
Branch analysis from position: 38
Branch analysis from position: 25
filename:       /in/AhN3c
function name:  generate
number of ops:  39
compiled vars:  !0 = $digilist, !1 = $three_chars, !2 = $i, !3 = $id, !4 = $key
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    8     0  E >   ASSIGN                                                       !0, '0123456789ABCDEFGHJKLMNPQRTUVWXY'
   10     1        ASSIGN                                                       !1, null
   11     2        INIT_FCALL                                                   'rand'
          3        SEND_VAL                                                     1
          4        SEND_VAL                                                     9
          5        DO_ICALL                                             $7      
          6        FRAMELESS_ICALL_3                substr              ~8      !0, $7
          7        OP_DATA                                                      1
          8        ASSIGN_OP                                         8          !1, ~8
   12     9        INIT_FCALL                                                   'rand'
         10        SEND_VAL                                                     10
         11        SEND_VAL                                                     31
         12        DO_ICALL                                             $10     
         13        FRAMELESS_ICALL_3                substr              ~11     !0, $10
         14        OP_DATA                                                      1
         15        ASSIGN_OP                                         8          !1, ~11
   13    16        INIT_FCALL                                                   'rand'
         17        SEND_VAL                                                     10
         18        SEND_VAL                                                     31
         19        DO_ICALL                                             $13     
         20        FRAMELESS_ICALL_3                substr              ~14     !0, $13
         21        OP_DATA                                                      1
         22        ASSIGN_OP                                         8          !1, ~14
   15    23        ASSIGN                                                       !2, 22
         24      > JMP                                                          ->36
   17    25    >   CONCAT                                               ~17     !1, !2
         26        ASSIGN                                                       !3, ~17
   18    27        INIT_FCALL_BY_NAME                                           'get_key'
         28        SEND_VAR_EX                                                  !3
         29        DO_FCALL                                          0  $19     
         30        ASSIGN                                                       !4, $19
   19    31        CONCAT                                               ~21     !3, '%3A'
         32        CONCAT                                               ~22     ~21, !4
         33        CONCAT                                               ~23     ~22, '%0A'
         34        ECHO                                                         ~23
   15    35        PRE_INC                                                      !2
         36    >   IS_SMALLER                                                   !2, 100
         37      > JMPNZ                                                        ~25, ->25
   21    38    > > RETURN                                                       null

End of function generate

Function get_key:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 31
Branch analysis from position: 31
2 jumps found. (Code = 44) Position 1 = 33, Position 2 = 9
Branch analysis from position: 33
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
2 jumps found. (Code = 46) Position 1 = 19, Position 2 = 21
Branch analysis from position: 19
2 jumps found. (Code = 43) Position 1 = 22, Position 2 = 27
Branch analysis from position: 22
1 jumps found. (Code = 42) Position 1 = 30
Branch analysis from position: 30
2 jumps found. (Code = 44) Position 1 = 33, Position 2 = 9
Branch analysis from position: 33
Branch analysis from position: 9
Branch analysis from position: 27
2 jumps found. (Code = 44) Position 1 = 33, Position 2 = 9
Branch analysis from position: 33
Branch analysis from position: 9
Branch analysis from position: 21
filename:       /in/AhN3c
function name:  get_key
number of ops:  35
compiled vars:  !0 = $id, !1 = $digilist, !2 = $hash, !3 = $i, !4 = $key, !5 = $nextdigit
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   23     0  E >   RECV                                                 !0      
   25     1        ASSIGN                                                       !1, '0123456789ABCDEFGHJKLMNPQRTUVWXY'
   27     2        INIT_FCALL                                                   'md5'
          3        SEND_VAR                                                     !0
          4        DO_ICALL                                             $7      
          5        ASSIGN                                                       !2, $7
   30     6        ASSIGN                                                       !3, 0
   31     7        ASSIGN                                                       !4, null
   32     8      > JMP                                                          ->31
   36     9    >   INIT_FCALL                                                   'hexdec'
         10        FRAMELESS_ICALL_3                substr              ~11     !2, !3
         11        OP_DATA                                                      2
         12        SEND_VAL                                                     ~11
         13        DO_ICALL                                             $12     
         14        BW_AND                                               ~13     $12, 31
         15        ASSIGN                                                       !5, ~13
   39    16        MOD                                                  ~15     !3, 8
         17        IS_EQUAL                                             ~16     ~15, 0
         18      > JMPZ_EX                                              ~16     ~16, ->21
         19    >   IS_SMALLER                                           ~17     0, !3
         20        BOOL                                                 ~16     ~17
         21    > > JMPZ                                                         ~16, ->27
   41    22    >   FRAMELESS_ICALL_3                substr              ~18     !1, !5
         23        OP_DATA                                                      1
         24        CONCAT                                               ~19     '-', ~18
         25        ASSIGN_OP                                         8          !4, ~19
   39    26      > JMP                                                          ->30
   45    27    >   FRAMELESS_ICALL_3                substr              ~21     !1, !5
         28        OP_DATA                                                      1
         29        ASSIGN_OP                                         8          !4, ~21
   32    30    >   ASSIGN_OP                                         1          !3, 2
         31    >   IS_SMALLER                                                   !3, 32
         32      > JMPNZ                                                        ~24, ->9
   48    33    > > RETURN                                                       !4
   49    34*     > RETURN                                                       null

End of function get_key

Generated using Vulcan Logic Dumper, using php 8.5.0


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131.17 ms | 489 KiB | 10 Q