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<?php $a = array(1,2,1,3,2,1,3,2,1,3,2,1,2,3,1,2,3); echo implode(" ", $a) . "\n"; $first = 0; $last = sizeof($a) - 1; echo $last; exit; for($i = $first; $i += 1; $i <= $last) { $v = $a[$i]; echo "Found $v at index $i\n"; if ($v == 1) { // swap($a, $i, $first); } if ($v == 3) { // swap($a, $i, $last); } } echo implode(" ", $a) . "\n"; function swap(&$arr, $k1, $k2) { echo "Swapping $k1 and $k2\n"; $tmp = $arr[$k2]; $arr[$k2] = $arr[$k1]; $arr[$k1] = $tmp; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 79) Position 1 = -2
filename:       /in/X9qOv
function name:  (null)
number of ops:  38
compiled vars:  !0 = $a, !1 = $first, !2 = $last, !3 = $i, !4 = $v
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        INIT_FCALL                                               'implode'
          2        SEND_VAL                                                 '+'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $6      
          5        CONCAT                                           ~7      $6, '%0A'
          6        ECHO                                                     ~7
    6     7        ASSIGN                                                   !1, 0
    7     8        COUNT                                            ~9      !0
          9        SUB                                              ~10     ~9, 1
         10        ASSIGN                                                   !2, ~10
    8    11        ECHO                                                     !2
         12      > EXIT                                                     
   10    13*       ASSIGN                                                   !3, !1
         14*       JMP                                                      ->29
   12    15*       FETCH_DIM_R                                      ~13     !0, !3
         16*       ASSIGN                                                   !4, ~13
   13    17*       ROPE_INIT                                     5  ~16     'Found+'
         18*       ROPE_ADD                                      1  ~16     ~16, !4
         19*       ROPE_ADD                                      2  ~16     ~16, '+at+index+'
         20*       ROPE_ADD                                      3  ~16     ~16, !3
         21*       ROPE_END                                      4  ~15     ~16, '%0A'
         22*       ECHO                                                     ~15
   15    23*       IS_EQUAL                                                 !4, 1
         24*       JMPZ                                                     ~19, ->25
   18    25*       IS_EQUAL                                                 !4, 3
         26*       JMPZ                                                     ~20, ->27
   10    27*       IS_SMALLER_OR_EQUAL                              ~21     !3, !2
         28*       FREE                                                     ~21
         29*       ASSIGN_OP                                     1  ~22     !3, 1
         30*       JMPNZ                                                    ~22, ->15
   23    31*       INIT_FCALL                                               'implode'
         32*       SEND_VAL                                                 '+'
         33*       SEND_VAR                                                 !0
         34*       DO_ICALL                                         $23     
         35*       CONCAT                                           ~24     $23, '%0A'
         36*       ECHO                                                     ~24
   31    37*     > RETURN                                                   1

Function swap:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/X9qOv
function name:  swap
number of ops:  17
compiled vars:  !0 = $arr, !1 = $k1, !2 = $k2, !3 = $tmp
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   25     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        RECV                                             !2      
   27     3        ROPE_INIT                                     5  ~5      'Swapping+'
          4        ROPE_ADD                                      1  ~5      ~5, !1
          5        ROPE_ADD                                      2  ~5      ~5, '+and+'
          6        ROPE_ADD                                      3  ~5      ~5, !2
          7        ROPE_END                                      4  ~4      ~5, '%0A'
          8        ECHO                                                     ~4
   28     9        FETCH_DIM_R                                      ~8      !0, !2
         10        ASSIGN                                                   !3, ~8
   29    11        FETCH_DIM_R                                      ~11     !0, !1
         12        ASSIGN_DIM                                               !0, !2
         13        OP_DATA                                                  ~11
   30    14        ASSIGN_DIM                                               !0, !1
         15        OP_DATA                                                  !3
   31    16      > RETURN                                                   null

End of function swap

Generated using Vulcan Logic Dumper, using php 8.0.0


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