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<?php $fibonacci = array(); $previous = 1; for($i = 1; $i <= 4000000;) { $i = $i + $previous; if($i%2==0) $fibonacci[] = $i; $previous = $i; } echo array_sum($fibonacci);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 4
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 11
Branch analysis from position: 9
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 4
Branch analysis from position: 14
Branch analysis from position: 4
Branch analysis from position: 11
filename:       /in/YQPWd
function name:  (null)
number of ops:  19
compiled vars:  !0 = $fibonacci, !1 = $previous, !2 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1        ASSIGN                                                   !1, 1
    4     2        ASSIGN                                                   !2, 1
          3      > JMP                                                      ->12
    5     4    >   ADD                                              ~6      !2, !1
          5        ASSIGN                                                   !2, ~6
    6     6        MOD                                              ~8      !2, 2
          7        IS_EQUAL                                                 ~8, 0
          8      > JMPZ                                                     ~9, ->11
          9    >   ASSIGN_DIM                                               !0
         10        OP_DATA                                                  !2
    7    11    >   ASSIGN                                                   !1, !2
    4    12    >   IS_SMALLER_OR_EQUAL                                      !2, 4000000
         13      > JMPNZ                                                    ~12, ->4
    9    14    >   INIT_FCALL                                               'array_sum'
         15        SEND_VAR                                                 !0
         16        DO_ICALL                                         $13     
         17        ECHO                                                     $13
         18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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