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<?php $data = 0; for ($key =0; $key < 2; $key++) { switch ($key) { case 1 : $data++;break; case 2 : $data--;break; case 3 : $data--;break; default : $data=0;break; } echo $data; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 20
Branch analysis from position: 20
2 jumps found. (Code = 44) Position 1 = 22, Position 2 = 3
Branch analysis from position: 22
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 3
2 jumps found. (Code = 44) Position 1 = 5, Position 2 = 10
Branch analysis from position: 5
2 jumps found. (Code = 44) Position 1 = 7, Position 2 = 12
Branch analysis from position: 7
2 jumps found. (Code = 44) Position 1 = 9, Position 2 = 14
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
1 jumps found. (Code = 42) Position 1 = 18
Branch analysis from position: 18
2 jumps found. (Code = 44) Position 1 = 22, Position 2 = 3
Branch analysis from position: 22
Branch analysis from position: 3
Branch analysis from position: 14
1 jumps found. (Code = 42) Position 1 = 18
Branch analysis from position: 18
Branch analysis from position: 12
1 jumps found. (Code = 42) Position 1 = 18
Branch analysis from position: 18
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 18
Branch analysis from position: 18
filename:       /in/iLS5O
function name:  (null)
number of ops:  23
compiled vars:  !0 = $data, !1 = $key
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 0
    4     1        ASSIGN                                                   !1, 0
          2      > JMP                                                      ->20
    7     3    >   IS_EQUAL                                                 !1, 1
          4      > JMPNZ                                                    ~4, ->10
    8     5    >   IS_EQUAL                                                 !1, 2
          6      > JMPNZ                                                    ~4, ->12
    9     7    >   IS_EQUAL                                                 !1, 3
          8      > JMPNZ                                                    ~4, ->14
          9    > > JMP                                                      ->16
    7    10    >   PRE_INC                                                  !0
         11      > JMP                                                      ->18
    8    12    >   PRE_DEC                                                  !0
         13      > JMP                                                      ->18
    9    14    >   PRE_DEC                                                  !0
         15      > JMP                                                      ->18
   10    16    >   ASSIGN                                                   !0, 0
         17      > JMP                                                      ->18
   12    18    >   ECHO                                                     !0
    4    19        PRE_INC                                                  !1
         20    >   IS_SMALLER                                               !1, 2
         21      > JMPNZ                                                    ~10, ->3
   13    22    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
154.77 ms | 1395 KiB | 13 Q