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<?php $a = [1,2,3]; foreach($a as &$num) {} echo json_encode($a),"\n"; foreach($a as $num) { echo json_encode($a),"\n"; } echo implode(',',$a).PHP_EOL; // 1,2,2
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 2, Position 2 = 4
Branch analysis from position: 2
2 jumps found. (Code = 126) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 4
2 jumps found. (Code = 77) Position 1 = 11, Position 2 = 18
Branch analysis from position: 11
2 jumps found. (Code = 78) Position 1 = 12, Position 2 = 18
Branch analysis from position: 12
1 jumps found. (Code = 42) Position 1 = 11
Branch analysis from position: 11
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 18
Branch analysis from position: 4
filename:       /in/Nrjo2
function name:  (null)
number of ops:  26
compiled vars:  !0 = $a, !1 = $num
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    4     1      > FE_RESET_RW                                      $3      !0, ->4
          2    > > FE_FETCH_RW                                              $3, !1, ->4
          3    > > JMP                                                      ->2
          4    >   FE_FREE                                                  $3
    5     5        INIT_FCALL                                               'json_encode'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $4      
          8        ECHO                                                     $4
          9        ECHO                                                     '%0A'
    7    10      > FE_RESET_R                                       $5      !0, ->18
         11    > > FE_FETCH_R                                               $5, !1, ->18
    8    12    >   INIT_FCALL                                               'json_encode'
         13        SEND_VAR                                                 !0
         14        DO_ICALL                                         $6      
         15        ECHO                                                     $6
         16        ECHO                                                     '%0A'
    7    17      > JMP                                                      ->11
         18    >   FE_FREE                                                  $5
   10    19        INIT_FCALL                                               'implode'
         20        SEND_VAL                                                 '%2C'
         21        SEND_VAR                                                 !0
         22        DO_ICALL                                         $7      
         23        CONCAT                                           ~8      $7, '%0A'
         24        ECHO                                                     ~8
         25      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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