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<?php $a1 = [1,2,3,4,5]; $a2 = [1,3,5]; $result = []; foreach($a1 as $item) { if (in_array($item, $a2)) { $result[] = 'match' . $item; } else { $result[] = $item; } } print_r($result);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 17
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 17
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 14
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 14
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
filename:       /in/PlTIZ
function name:  (null)
number of ops:  22
compiled vars:  !0 = $a1, !1 = $a2, !2 = $result, !3 = $item
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, <array>
    5     2        ASSIGN                                                   !2, <array>
    7     3      > FE_RESET_R                                       $7      !0, ->17
          4    > > FE_FETCH_R                                               $7, !3, ->17
    8     5    >   INIT_FCALL                                               'in_array'
          6        SEND_VAR                                                 !3
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                         $8      
          9      > JMPZ                                                     $8, ->14
    9    10    >   CONCAT                                           ~10     'match', !3
         11        ASSIGN_DIM                                               !2
         12        OP_DATA                                                  ~10
    8    13      > JMP                                                      ->16
   11    14    >   ASSIGN_DIM                                               !2
         15        OP_DATA                                                  !3
    7    16    > > JMP                                                      ->4
         17    >   FE_FREE                                                  $7
   15    18        INIT_FCALL                                               'print_r'
         19        SEND_VAR                                                 !2
         20        DO_ICALL                                                 
         21      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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