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<?php function is_prime($num) { $n = $num - 1; while ($n > 1) { if (is_int($num / $n)) { return false; } $n--; } return true; } header('Content-type: text/plain'); foreach (range(1,10) as $num) { if (is_prime($num)) { echo "$num is prime\n"; } else { echo "$num is not prime\n"; } }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 8, Position 2 = 21
Branch analysis from position: 8
2 jumps found. (Code = 78) Position 1 = 9, Position 2 = 21
Branch analysis from position: 9
2 jumps found. (Code = 43) Position 1 = 13, Position 2 = 17
Branch analysis from position: 13
1 jumps found. (Code = 42) Position 1 = 20
Branch analysis from position: 20
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
Branch analysis from position: 17
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
Branch analysis from position: 21
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 21
filename:       /in/VW4lS
function name:  (null)
number of ops:  23
compiled vars:  !0 = $num
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   INIT_FCALL                                               'header'
          1        SEND_VAL                                                 'Content-type%3A+text%2Fplain'
          2        DO_ICALL                                                 
   16     3        INIT_FCALL                                               'range'
          4        SEND_VAL                                                 1
          5        SEND_VAL                                                 10
          6        DO_ICALL                                         $2      
          7      > FE_RESET_R                                       $3      $2, ->21
          8    > > FE_FETCH_R                                               $3, !0, ->21
   17     9    >   INIT_FCALL                                               'is_prime'
         10        SEND_VAR                                                 !0
         11        DO_FCALL                                      0  $4      
         12      > JMPZ                                                     $4, ->17
   18    13    >   NOP                                                      
         14        FAST_CONCAT                                      ~5      !0, '+is+prime%0A'
         15        ECHO                                                     ~5
         16      > JMP                                                      ->20
   20    17    >   NOP                                                      
         18        FAST_CONCAT                                      ~6      !0, '+is+not+prime%0A'
         19        ECHO                                                     ~6
   16    20    > > JMP                                                      ->8
         21    >   FE_FREE                                                  $3
   22    22      > RETURN                                                   1

Function is_prime:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
2 jumps found. (Code = 44) Position 1 = 11, Position 2 = 4
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 8
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
2 jumps found. (Code = 44) Position 1 = 11, Position 2 = 4
Branch analysis from position: 11
Branch analysis from position: 4
filename:       /in/VW4lS
function name:  is_prime
number of ops:  13
compiled vars:  !0 = $num, !1 = $n
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        SUB                                              ~2      !0, 1
          2        ASSIGN                                                   !1, ~2
    5     3      > JMP                                                      ->9
    6     4    >   DIV                                              ~4      !0, !1
          5        TYPE_CHECK                                   16          ~4
          6      > JMPZ                                                     ~5, ->8
    7     7    > > RETURN                                                   <false>
    9     8    >   PRE_DEC                                                  !1
    5     9    >   IS_SMALLER                                               1, !1
         10      > JMPNZ                                                    ~7, ->4
   11    11    > > RETURN                                                   <true>
   12    12*     > RETURN                                                   null

End of function is_prime

Generated using Vulcan Logic Dumper, using php 8.0.0


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