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<?php $color = [ ['id' => 1, 'color' => 'red'], ['id' => 2, 'color' => 'green'], ['id' => 3, 'color' => 'blue'], ]; $size = [ ['id' => 1, 'size' => 'SM'], ['id' => 2, 'size' => 'XL'], ['id' => 4, 'size' => 'LG'], ['id' => 3, 'size' => 'MD'], ]; foreach(array_merge($color, $size) as $el){ $merged[$el['id']] = ($merged[$el['id']] ?? []) + $el; } var_export($merged);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 7, Position 2 = 17
Branch analysis from position: 7
2 jumps found. (Code = 78) Position 1 = 8, Position 2 = 17
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
filename:       /in/7iqjt
function name:  (null)
number of ops:  22
compiled vars:  !0 = $color, !1 = $size, !2 = $el, !3 = $merged
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    9     1        ASSIGN                                                   !1, <array>
   16     2        INIT_FCALL                                               'array_merge'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        DO_ICALL                                         $6      
          6      > FE_RESET_R                                       $7      $6, ->17
          7    > > FE_FETCH_R                                               $7, !2, ->17
   17     8    >   FETCH_DIM_R                                      ~8      !2, 'id'
          9        FETCH_DIM_R                                      ~10     !2, 'id'
         10        FETCH_DIM_IS                                     ~11     !3, ~10
         11        COALESCE                                         ~12     ~11
         12        QM_ASSIGN                                        ~12     <array>
         13        ADD                                              ~13     ~12, !2
         14        ASSIGN_DIM                                               !3, ~8
         15        OP_DATA                                                  ~13
   16    16      > JMP                                                      ->7
         17    >   FE_FREE                                                  $7
   20    18        INIT_FCALL                                               'var_export'
         19        SEND_VAR                                                 !3
         20        DO_ICALL                                                 
         21      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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