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<?php // 数字の文字列に対する総和を計算する function calculateSum(string $param) : string { $su = (int)$param; $res = 0; for ($i = 1; $i <= $su; $i++) { $res += $i; } if ($su <= 0) { return "ERROR"; } return (string)$res; } var_dump(calculateSum('10'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/sphFb
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   19     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'calculatesum'
          2        SEND_VAL                                                 '10'
          3        DO_FCALL                                      0  $0      
          4        SEND_VAR                                                 $0
          5        DO_ICALL                                                 
          6      > RETURN                                                   1

Function calculatesum:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
2 jumps found. (Code = 44) Position 1 = 10, Position 2 = 6
Branch analysis from position: 10
2 jumps found. (Code = 43) Position 1 = 12, Position 2 = 13
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
2 jumps found. (Code = 44) Position 1 = 10, Position 2 = 6
Branch analysis from position: 10
Branch analysis from position: 6
filename:       /in/sphFb
function name:  calculateSum
number of ops:  18
compiled vars:  !0 = $param, !1 = $su, !2 = $res, !3 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
    6     1        CAST                                          4  ~4      !0
          2        ASSIGN                                                   !1, ~4
    7     3        ASSIGN                                                   !2, 0
    8     4        ASSIGN                                                   !3, 1
          5      > JMP                                                      ->8
    9     6    >   ASSIGN_OP                                     1          !2, !3
    8     7        PRE_INC                                                  !3
          8    >   IS_SMALLER_OR_EQUAL                                      !3, !1
          9      > JMPNZ                                                    ~10, ->6
   12    10    >   IS_SMALLER_OR_EQUAL                                      !1, 0
         11      > JMPZ                                                     ~11, ->13
   13    12    > > RETURN                                                   'ERROR'
   16    13    >   CAST                                          6  ~12     !2
         14        VERIFY_RETURN_TYPE                                       ~12
         15      > RETURN                                                   ~12
   17    16*       VERIFY_RETURN_TYPE                                       
         17*     > RETURN                                                   null

End of function calculatesum

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
145.6 ms | 1399 KiB | 16 Q