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<?php $sampleData = [ ['group' => 'g1', 'branch' => 'b1', 'unit' => 'null'], ['group' => 'g1', 'branch' => 'b1', 'unit' => 'u2'], ['group' => 'g2', 'branch' => 'null', 'unit' => 'u3'], ['group' => 'g2', 'branch' => 'b6', 'unit' => 'u4'], ['group' => 'g3', 'branch' => 'b7', 'unit' => 'u5'], ]; $groups = []; foreach($sampleData as $row){ $groups[$row['group']][$row['branch']][] = $row['unit']; } var_dump($groups);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 12
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 12
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/2FYsV
function name:  (null)
number of ops:  17
compiled vars:  !0 = $sampleData, !1 = $groups, !2 = $row
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
   10     1        ASSIGN                                                   !1, <array>
   11     2      > FE_RESET_R                                       $5      !0, ->12
          3    > > FE_FETCH_R                                               $5, !2, ->12
   12     4    >   FETCH_DIM_R                                      ~6      !2, 'group'
          5        FETCH_DIM_R                                      ~8      !2, 'branch'
          6        FETCH_DIM_R                                      ~11     !2, 'unit'
          7        FETCH_DIM_W                                      $7      !1, ~6
          8        FETCH_DIM_W                                      $9      $7, ~8
          9        ASSIGN_DIM                                               $9
         10        OP_DATA                                                  ~11
   11    11      > JMP                                                      ->3
         12    >   FE_FREE                                                  $5
   15    13        INIT_FCALL                                               'var_dump'
         14        SEND_VAR                                                 !1
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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