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<?php function gdr_encode($val) { // all characters that json encode without escaping $chrs = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 !#$%&\'()*+,-.:;<=>?@[]^_`{|}~'; $base = strlen($chrs); $str = ''; while ($val > 0) { $str = $chrs[$val % $base] . $str; $val = (int)($val / $base); } return $str; } function gdr_decode($str) { // all characters that json encode without escaping $chrs = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 !#$%&\'()*+,-.:;<=>?@[]^_`{|}~'; $base = strlen($chrs); $map = array(); for ($i=0; $i<$base; $i++) { $map[$chrs[$i]] = $i; } $val = 0; for ($i=0; $i<strlen($str); $i++) { $val *= $base; $val += (int)$map[$str[$i]]; } return $val; } $vals = array( 0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 250000, 500000, 750000, 999999, 1000000, 4294967295, 4294967296 ); echo sprintf("%10s %9s %5s %5s\n", 'num', 'str', 'day', 'cmp'); foreach ($vals as $val) { $enc = gdr_encode($val); $dec = gdr_decode($enc); if ($dec !== $val) { echo "ERROR: $val => $enc => $dec\n"; } else { $days = sprintf('%01.1f', $val/24.0); echo sprintf("%10d %9s %5s %5d\n", $dec, "\"$enc\"", $days, strlen($enc)+2-strlen($val)); } }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 10, Position 2 = 52
Branch analysis from position: 10
2 jumps found. (Code = 78) Position 1 = 11, Position 2 = 52
Branch analysis from position: 11
2 jumps found. (Code = 43) Position 1 = 21, Position 2 = 30
Branch analysis from position: 21
1 jumps found. (Code = 42) Position 1 = 51
Branch analysis from position: 51
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
Branch analysis from position: 30
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
Branch analysis from position: 52
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 52
filename:       /in/la2Jm
function name:  (null)
number of ops:  54
compiled vars:  !0 = $vals, !1 = $val, !2 = $enc, !3 = $dec, !4 = $days
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   31     0  E >   ASSIGN                                                   !0, <array>
   35     1        INIT_FCALL                                               'sprintf'
          2        SEND_VAL                                                 '%2510s+%259s+%255s+%255s%0A'
          3        SEND_VAL                                                 'num'
          4        SEND_VAL                                                 'str'
          5        SEND_VAL                                                 'day'
          6        SEND_VAL                                                 'cmp'
          7        DO_ICALL                                         $6      
          8        ECHO                                                     $6
   36     9      > FE_RESET_R                                       $7      !0, ->52
         10    > > FE_FETCH_R                                               $7, !1, ->52
   37    11    >   INIT_FCALL                                               'gdr_encode'
         12        SEND_VAR                                                 !1
         13        DO_FCALL                                      0  $8      
         14        ASSIGN                                                   !2, $8
   38    15        INIT_FCALL                                               'gdr_decode'
         16        SEND_VAR                                                 !2
         17        DO_FCALL                                      0  $10     
         18        ASSIGN                                                   !3, $10
   39    19        IS_NOT_IDENTICAL                                         !3, !1
         20      > JMPZ                                                     ~12, ->30
   40    21    >   ROPE_INIT                                     7  ~14     'ERROR%3A+'
         22        ROPE_ADD                                      1  ~14     ~14, !1
         23        ROPE_ADD                                      2  ~14     ~14, '+%3D%3E+'
         24        ROPE_ADD                                      3  ~14     ~14, !2
         25        ROPE_ADD                                      4  ~14     ~14, '+%3D%3E+'
         26        ROPE_ADD                                      5  ~14     ~14, !3
         27        ROPE_END                                      6  ~13     ~14, '%0A'
         28        ECHO                                                     ~13
         29      > JMP                                                      ->51
   42    30    >   INIT_FCALL                                               'sprintf'
         31        SEND_VAL                                                 '%2501.1f'
         32        DIV                                              ~18     !1, 24
         33        SEND_VAL                                                 ~18
         34        DO_ICALL                                         $19     
         35        ASSIGN                                                   !4, $19
   43    36        INIT_FCALL                                               'sprintf'
         37        SEND_VAL                                                 '%2510d+%259s%C2%A0%255s+%255d%0A'
         38        SEND_VAR                                                 !3
         39        ROPE_INIT                                     3  ~22     '%22'
         40        ROPE_ADD                                      1  ~22     ~22, !2
         41        ROPE_END                                      2  ~21     ~22, '%22'
         42        SEND_VAL                                                 ~21
         43        SEND_VAR                                                 !4
         44        STRLEN                                           ~24     !2
         45        ADD                                              ~25     ~24, 2
         46        STRLEN                                           ~26     !1
         47        SUB                                              ~27     ~25, ~26
         48        SEND_VAL                                                 ~27
         49        DO_ICALL                                         $28     
         50        ECHO                                                     $28
   36    51    > > JMP                                                      ->10
         52    >   FE_FREE                                                  $7
   45    53      > RETURN                                                   1

Function gdr_encode:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 13
Branch analysis from position: 13
2 jumps found. (Code = 44) Position 1 = 15, Position 2 = 6
Branch analysis from position: 15
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
2 jumps found. (Code = 44) Position 1 = 15, Position 2 = 6
Branch analysis from position: 15
Branch analysis from position: 6
filename:       /in/la2Jm
function name:  gdr_encode
number of ops:  17
compiled vars:  !0 = $val, !1 = $chrs, !2 = $base, !3 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    5     1        ASSIGN                                                   !1, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+%21%23%24%25%26%27%28%29%2A%2B%2C-.%3A%3B%3C%3D%3E%3F%40%5B%5D%5E_%60%7B%7C%7D%7E'
    6     2        STRLEN                                           ~5      !1
          3        ASSIGN                                                   !2, ~5
    7     4        ASSIGN                                                   !3, ''
    8     5      > JMP                                                      ->13
    9     6    >   MOD                                              ~8      !0, !2
          7        FETCH_DIM_R                                      ~9      !1, ~8
          8        CONCAT                                           ~10     ~9, !3
          9        ASSIGN                                                   !3, ~10
   10    10        DIV                                              ~12     !0, !2
         11        CAST                                          4  ~13     ~12
         12        ASSIGN                                                   !0, ~13
    8    13    >   IS_SMALLER                                               0, !0
         14      > JMPNZ                                                    ~15, ->6
   12    15    > > RETURN                                                   !3
   13    16*     > RETURN                                                   null

End of function gdr_encode

Function gdr_decode:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 11
Branch analysis from position: 11
2 jumps found. (Code = 44) Position 1 = 13, Position 2 = 7
Branch analysis from position: 13
1 jumps found. (Code = 42) Position 1 = 22
Branch analysis from position: 22
2 jumps found. (Code = 44) Position 1 = 25, Position 2 = 16
Branch analysis from position: 25
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 16
2 jumps found. (Code = 44) Position 1 = 25, Position 2 = 16
Branch analysis from position: 25
Branch analysis from position: 16
Branch analysis from position: 7
2 jumps found. (Code = 44) Position 1 = 13, Position 2 = 7
Branch analysis from position: 13
Branch analysis from position: 7
filename:       /in/la2Jm
function name:  gdr_decode
number of ops:  27
compiled vars:  !0 = $str, !1 = $chrs, !2 = $base, !3 = $map, !4 = $i, !5 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   15     0  E >   RECV                                             !0      
   17     1        ASSIGN                                                   !1, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+%21%23%24%25%26%27%28%29%2A%2B%2C-.%3A%3B%3C%3D%3E%3F%40%5B%5D%5E_%60%7B%7C%7D%7E'
   18     2        STRLEN                                           ~7      !1
          3        ASSIGN                                                   !2, ~7
   19     4        ASSIGN                                                   !3, <array>
   20     5        ASSIGN                                                   !4, 0
          6      > JMP                                                      ->11
   21     7    >   FETCH_DIM_R                                      ~11     !1, !4
          8        ASSIGN_DIM                                               !3, ~11
          9        OP_DATA                                                  !4
   20    10        PRE_INC                                                  !4
         11    >   IS_SMALLER                                               !4, !2
         12      > JMPNZ                                                    ~14, ->7
   23    13    >   ASSIGN                                                   !5, 0
   24    14        ASSIGN                                                   !4, 0
         15      > JMP                                                      ->22
   25    16    >   ASSIGN_OP                                     3          !5, !2
   26    17        FETCH_DIM_R                                      ~18     !0, !4
         18        FETCH_DIM_R                                      ~19     !3, ~18
         19        CAST                                          4  ~20     ~19
         20        ASSIGN_OP                                     1          !5, ~20
   24    21        PRE_INC                                                  !4
         22    >   STRLEN                                           ~23     !0
         23        IS_SMALLER                                               !4, ~23
         24      > JMPNZ                                                    ~24, ->16
   28    25    > > RETURN                                                   !5
   29    26*     > RETURN                                                   null

End of function gdr_decode

Generated using Vulcan Logic Dumper, using php 8.0.0


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175.58 ms | 1407 KiB | 17 Q