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<?php function gdr_encode($val) { $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!='; $base = strlen($chars); $str = ''; while ($val > 0) { $str .= $chars[$val % $base]; $val = (int)($val / $chars); } return $str; } function gdr_decode($val) { return base_convert(strval($val), 16, 10); } $vals = array(0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 999999, 1000000, 4294967295, 4294967296); foreach ($vals as $val) { $enc = json_encode(gdr_encode($val)); $dec = json_encode(gdr_decode($enc)); $val = json_encode($val); if (strlen($enc) > strlen($val)) { echo "$enc $val WORSE\n"; } else if (strlen($enc) == strlen($val)) { echo "$enc $val EQUAL\n"; } else { echo "$enc $val\n"; } }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 47
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 47
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 25, Position 2 = 31
Branch analysis from position: 25
1 jumps found. (Code = 42) Position 1 = 46
Branch analysis from position: 46
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 31
2 jumps found. (Code = 43) Position 1 = 35, Position 2 = 41
Branch analysis from position: 35
1 jumps found. (Code = 42) Position 1 = 46
Branch analysis from position: 46
Branch analysis from position: 41
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 47
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 47
filename:       /in/Nd5k8
function name:  (null)
number of ops:  49
compiled vars:  !0 = $vals, !1 = $val, !2 = $enc, !3 = $dec
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   18     0  E >   ASSIGN                                                   !0, <array>
   19     1      > FE_RESET_R                                       $5      !0, ->47
          2    > > FE_FETCH_R                                               $5, !1, ->47
   20     3    >   INIT_FCALL                                               'json_encode'
          4        INIT_FCALL                                               'gdr_encode'
          5        SEND_VAR                                                 !1
          6        DO_FCALL                                      0  $6      
          7        SEND_VAR                                                 $6
          8        DO_ICALL                                         $7      
          9        ASSIGN                                                   !2, $7
   21    10        INIT_FCALL                                               'json_encode'
         11        INIT_FCALL                                               'gdr_decode'
         12        SEND_VAR                                                 !2
         13        DO_FCALL                                      0  $9      
         14        SEND_VAR                                                 $9
         15        DO_ICALL                                         $10     
         16        ASSIGN                                                   !3, $10
   22    17        INIT_FCALL                                               'json_encode'
         18        SEND_VAR                                                 !1
         19        DO_ICALL                                         $12     
         20        ASSIGN                                                   !1, $12
   23    21        STRLEN                                           ~14     !2
         22        STRLEN                                           ~15     !1
         23        IS_SMALLER                                               ~15, ~14
         24      > JMPZ                                                     ~16, ->31
   24    25    >   ROPE_INIT                                     4  ~18     !2
         26        ROPE_ADD                                      1  ~18     ~18, '+'
         27        ROPE_ADD                                      2  ~18     ~18, !1
         28        ROPE_END                                      3  ~17     ~18, '+WORSE%0A'
         29        ECHO                                                     ~17
         30      > JMP                                                      ->46
   25    31    >   STRLEN                                           ~20     !2
         32        STRLEN                                           ~21     !1
         33        IS_EQUAL                                                 ~20, ~21
         34      > JMPZ                                                     ~22, ->41
   26    35    >   ROPE_INIT                                     4  ~24     !2
         36        ROPE_ADD                                      1  ~24     ~24, '+'
         37        ROPE_ADD                                      2  ~24     ~24, !1
         38        ROPE_END                                      3  ~23     ~24, '+EQUAL%0A'
         39        ECHO                                                     ~23
         40      > JMP                                                      ->46
   28    41    >   ROPE_INIT                                     4  ~27     !2
         42        ROPE_ADD                                      1  ~27     ~27, '+'
         43        ROPE_ADD                                      2  ~27     ~27, !1
         44        ROPE_END                                      3  ~26     ~27, '%0A'
         45        ECHO                                                     ~26
   19    46    > > JMP                                                      ->2
         47    >   FE_FREE                                                  $5
   30    48      > RETURN                                                   1

Function gdr_encode:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 6
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 6
Branch analysis from position: 14
Branch analysis from position: 6
filename:       /in/Nd5k8
function name:  gdr_encode
number of ops:  16
compiled vars:  !0 = $val, !1 = $chars, !2 = $base, !3 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        ASSIGN                                                   !1, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789%21%3D'
    5     2        STRLEN                                           ~5      !1
          3        ASSIGN                                                   !2, ~5
    6     4        ASSIGN                                                   !3, ''
    7     5      > JMP                                                      ->12
    8     6    >   MOD                                              ~8      !0, !2
          7        FETCH_DIM_R                                      ~9      !1, ~8
          8        ASSIGN_OP                                     8          !3, ~9
    9     9        DIV                                              ~11     !0, !1
         10        CAST                                          4  ~12     ~11
         11        ASSIGN                                                   !0, ~12
    7    12    >   IS_SMALLER                                               0, !0
         13      > JMPNZ                                                    ~14, ->6
   11    14    > > RETURN                                                   !3
   12    15*     > RETURN                                                   null

End of function gdr_encode

Function gdr_decode:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Nd5k8
function name:  gdr_decode
number of ops:  9
compiled vars:  !0 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   RECV                                             !0      
   15     1        INIT_FCALL                                               'base_convert'
          2        CAST                                          6  ~1      !0
          3        SEND_VAL                                                 ~1
          4        SEND_VAL                                                 16
          5        SEND_VAL                                                 10
          6        DO_ICALL                                         $2      
          7      > RETURN                                                   $2
   16     8*     > RETURN                                                   null

End of function gdr_decode

Generated using Vulcan Logic Dumper, using php 8.0.0


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158.7 ms | 1406 KiB | 19 Q