3v4l.org

run code in 300+ PHP versions simultaneously
<?php $code = "03255000000"; $len = strlen($code); $i = 0; $sum = 0; do { $r = (string)($i+1); $sum = (string)($sum + $code[$i]*$r); echo $k.": ".$code[$i]." * $r = $sum\n"; $i++; }while($i < $len); echo (string)($sum%11); ?>
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 44) Position 1 = 26, Position 2 = 5
Branch analysis from position: 26
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
filename:       /in/1e0Cg
function name:  (null)
number of ops:  30
compiled vars:  !0 = $code, !1 = $len, !2 = $i, !3 = $sum, !4 = $r, !5 = $k
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '03255000000'
    3     1        STRLEN                                           ~7      !0
          2        ASSIGN                                                   !1, ~7
    4     3        ASSIGN                                                   !2, 0
    5     4        ASSIGN                                                   !3, 0
    8     5    >   ADD                                              ~11     !2, 1
          6        CAST                                          6  ~12     ~11
          7        ASSIGN                                                   !4, ~12
    9     8        FETCH_DIM_R                                      ~14     !0, !2
          9        MUL                                              ~15     !4, ~14
         10        ADD                                              ~16     !3, ~15
         11        CAST                                          6  ~17     ~16
         12        ASSIGN                                                   !3, ~17
   10    13        CONCAT                                           ~19     !5, '%3A+'
         14        FETCH_DIM_R                                      ~20     !0, !2
         15        CONCAT                                           ~21     ~19, ~20
         16        ROPE_INIT                                     5  ~23     '+%2A+'
         17        ROPE_ADD                                      1  ~23     ~23, !4
         18        ROPE_ADD                                      2  ~23     ~23, '+%3D+'
         19        ROPE_ADD                                      3  ~23     ~23, !3
         20        ROPE_END                                      4  ~22     ~23, '%0A'
         21        CONCAT                                           ~26     ~21, ~22
         22        ECHO                                                     ~26
   11    23        PRE_INC                                                  !2
   12    24        IS_SMALLER                                               !2, !1
         25      > JMPNZ                                                    ~28, ->5
   13    26    >   MOD                                              ~29     !3, 11
         27        CAST                                          6  ~30     ~29
         28        ECHO                                                     ~30
   14    29      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
131.6 ms | 1394 KiB | 13 Q