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<?php $mid = 123; $csum = 0; foreach(str_split($mid) as $m){ $csum+= $m; } $csum = $csum % 10; echo $csum;
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 6, Position 2 = 9
Branch analysis from position: 6
2 jumps found. (Code = 78) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
filename:       /in/d4kUT
function name:  (null)
number of ops:  14
compiled vars:  !0 = $mid, !1 = $csum, !2 = $m
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 123
    4     1        ASSIGN                                                   !1, 0
    6     2        INIT_FCALL                                               'str_split'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $5      
          5      > FE_RESET_R                                       $6      $5, ->9
          6    > > FE_FETCH_R                                               $6, !2, ->9
    7     7    >   ASSIGN_OP                                     1          !1, !2
    6     8      > JMP                                                      ->6
          9    >   FE_FREE                                                  $6
   10    10        MOD                                              ~8      !1, 10
         11        ASSIGN                                                   !1, ~8
   12    12        ECHO                                                     !1
   13    13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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