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<?php function calcNextFib($max, $cur = 0, $old = 1) { echo $cur . PHP_EOL; $tmpCur = $cur; $cur = $old + $cur; $old = $tmpCur; if ($cur > $max) { return; } else { return calcNextFib($max, $cur, $old); } } //echo calcNextFib(317811); function fibonacci ($n) { if ($n == 1 || $n == 2) { return 1; } else { return fibonacci( $n - 1)+fibonacci( $n - 2 ); } } for ($i = 0; $i < 100; $i++) { echo fibonacci($i); }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
2 jumps found. (Code = 44) Position 1 = 9, Position 2 = 2
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
2 jumps found. (Code = 44) Position 1 = 9, Position 2 = 2
Branch analysis from position: 9
Branch analysis from position: 2
filename:       /in/uqkrT
function name:  (null)
number of ops:  10
compiled vars:  !0 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   30     0  E >   ASSIGN                                                   !0, 0
          1      > JMP                                                      ->7
   31     2    >   INIT_FCALL                                               'fibonacci'
          3        SEND_VAR                                                 !0
          4        DO_FCALL                                      0  $2      
          5        ECHO                                                     $2
   30     6        PRE_INC                                                  !0
          7    >   IS_SMALLER                                               !0, 100
          8      > JMPNZ                                                    ~4, ->2
   32     9    > > RETURN                                                   1

Function calcnextfib:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 13
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/uqkrT
function name:  calcNextFib
number of ops:  20
compiled vars:  !0 = $max, !1 = $cur, !2 = $old, !3 = $tmpCur
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
          1        RECV_INIT                                        !1      0
          2        RECV_INIT                                        !2      1
    4     3        CONCAT                                           ~4      !1, '%0A'
          4        ECHO                                                     ~4
    5     5        ASSIGN                                                   !3, !1
    6     6        ADD                                              ~6      !2, !1
          7        ASSIGN                                                   !1, ~6
    7     8        ASSIGN                                                   !2, !3
    9     9        IS_SMALLER                                               !0, !1
         10      > JMPZ                                                     ~9, ->13
   10    11    > > RETURN                                                   null
         12*       JMP                                                      ->19
   12    13    >   INIT_FCALL_BY_NAME                                       'calcNextFib'
         14        SEND_VAR_EX                                              !0
         15        SEND_VAR_EX                                              !1
         16        SEND_VAR_EX                                              !2
         17        DO_FCALL                                      0  $10     
         18      > RETURN                                                   $10
   14    19*     > RETURN                                                   null

End of function calcnextfib

Function fibonacci:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 47) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 8
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
filename:       /in/uqkrT
function name:  fibonacci
number of ops:  19
compiled vars:  !0 = $n
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   18     0  E >   RECV                                             !0      
   20     1        IS_EQUAL                                         ~1      !0, 1
          2      > JMPNZ_EX                                         ~1      ~1, ->5
          3    >   IS_EQUAL                                         ~2      !0, 2
          4        BOOL                                             ~1      ~2
          5    > > JMPZ                                                     ~1, ->8
   22     6    > > RETURN                                                   1
          7*       JMP                                                      ->18
   26     8    >   INIT_FCALL_BY_NAME                                       'fibonacci'
          9        SUB                                              ~3      !0, 1
         10        SEND_VAL_EX                                              ~3
         11        DO_FCALL                                      0  $4      
         12        INIT_FCALL_BY_NAME                                       'fibonacci'
         13        SUB                                              ~5      !0, 2
         14        SEND_VAL_EX                                              ~5
         15        DO_FCALL                                      0  $6      
         16        ADD                                              ~7      $4, $6
         17      > RETURN                                                   ~7
   28    18*     > RETURN                                                   null

End of function fibonacci

Generated using Vulcan Logic Dumper, using php 8.0.0


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