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<?php $subjects = array( array( 'class' => 'one', 'sub' => 'music', ), array( 'class' => 'one', 'sub' => array( 'social', 'health', 'science' ), ), array( 'class' => 'two', 'sub' => 'music', ), array( 'class' => 'one', 'sub' => 'math', ) ); $class_sub = array(); $result = array(); foreach( $subjects as $sub ) { if ( ! isset( $class_sub[ $sub['class'] ] ) ) { $class_sub[ $sub['class'] ] = $sub['sub']; } else { if ( is_array( $class_sub[ $sub['class'] ] ) ) { $new = array_merge( $class_sub[ $sub['class'] ], is_array($sub['sub']) ? $sub['sub'] : array($sub['sub'])); } else { $new = array_merge( array($class_sub[ $sub['class'] ]), is_array($sub['sub']) ? $sub['sub'] : array($sub['sub'])); } $class_sub[ $sub['class'] ] = $new; } } foreach( $class_sub as $class => $sub ) { $result[] = array( 'class' => $class, 'sub' => $sub ); } echo "<pre>"; print_r( $result ); echo "</pre>";
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 56
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 56
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 14
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 55
Branch analysis from position: 55
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 14
2 jumps found. (Code = 43) Position 1 = 18, Position 2 = 35
Branch analysis from position: 18
2 jumps found. (Code = 43) Position 1 = 25, Position 2 = 28
Branch analysis from position: 25
1 jumps found. (Code = 42) Position 1 = 31
Branch analysis from position: 31
1 jumps found. (Code = 42) Position 1 = 52
Branch analysis from position: 52
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 28
1 jumps found. (Code = 42) Position 1 = 52
Branch analysis from position: 52
Branch analysis from position: 35
2 jumps found. (Code = 43) Position 1 = 43, Position 2 = 46
Branch analysis from position: 43
1 jumps found. (Code = 42) Position 1 = 49
Branch analysis from position: 49
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 46
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 56
2 jumps found. (Code = 77) Position 1 = 58, Position 2 = 65
Branch analysis from position: 58
2 jumps found. (Code = 78) Position 1 = 59, Position 2 = 65
Branch analysis from position: 59
1 jumps found. (Code = 42) Position 1 = 58
Branch analysis from position: 58
Branch analysis from position: 65
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 65
Branch analysis from position: 56
filename:       /in/hL7RH
function name:  (null)
number of ops:  72
compiled vars:  !0 = $subjects, !1 = $class_sub, !2 = $result, !3 = $sub, !4 = $new, !5 = $class
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   23     1        ASSIGN                                                   !1, <array>
   24     2        ASSIGN                                                   !2, <array>
   26     3      > FE_RESET_R                                       $9      !0, ->56
          4    > > FE_FETCH_R                                               $9, !3, ->56
   27     5    >   FETCH_DIM_R                                      ~10     !3, 'class'
          6        ISSET_ISEMPTY_DIM_OBJ                         0  ~11     !1, ~10
          7        BOOL_NOT                                         ~12     ~11
          8      > JMPZ                                                     ~12, ->14
   28     9    >   FETCH_DIM_R                                      ~13     !3, 'class'
         10        FETCH_DIM_R                                      ~15     !3, 'sub'
         11        ASSIGN_DIM                                               !1, ~13
         12        OP_DATA                                                  ~15
         13      > JMP                                                      ->55
   30    14    >   FETCH_DIM_R                                      ~16     !3, 'class'
         15        FETCH_DIM_R                                      ~17     !1, ~16
         16        TYPE_CHECK                                  128          ~17
         17      > JMPZ                                                     ~18, ->35
   31    18    >   INIT_FCALL                                               'array_merge'
         19        FETCH_DIM_R                                      ~19     !3, 'class'
         20        FETCH_DIM_R                                      ~20     !1, ~19
         21        SEND_VAL                                                 ~20
         22        FETCH_DIM_R                                      ~21     !3, 'sub'
         23        TYPE_CHECK                                  128          ~21
         24      > JMPZ                                                     ~22, ->28
         25    >   FETCH_DIM_R                                      ~23     !3, 'sub'
         26        QM_ASSIGN                                        ~24     ~23
         27      > JMP                                                      ->31
         28    >   FETCH_DIM_R                                      ~25     !3, 'sub'
         29        INIT_ARRAY                                       ~26     ~25
         30        QM_ASSIGN                                        ~24     ~26
         31    >   SEND_VAL                                                 ~24
         32        DO_ICALL                                         $27     
         33        ASSIGN                                                   !4, $27
         34      > JMP                                                      ->52
   33    35    >   INIT_FCALL                                               'array_merge'
         36        FETCH_DIM_R                                      ~29     !3, 'class'
         37        FETCH_DIM_R                                      ~30     !1, ~29
         38        INIT_ARRAY                                       ~31     ~30
         39        SEND_VAL                                                 ~31
         40        FETCH_DIM_R                                      ~32     !3, 'sub'
         41        TYPE_CHECK                                  128          ~32
         42      > JMPZ                                                     ~33, ->46
         43    >   FETCH_DIM_R                                      ~34     !3, 'sub'
         44        QM_ASSIGN                                        ~35     ~34
         45      > JMP                                                      ->49
         46    >   FETCH_DIM_R                                      ~36     !3, 'sub'
         47        INIT_ARRAY                                       ~37     ~36
         48        QM_ASSIGN                                        ~35     ~37
         49    >   SEND_VAL                                                 ~35
         50        DO_ICALL                                         $38     
         51        ASSIGN                                                   !4, $38
   36    52    >   FETCH_DIM_R                                      ~40     !3, 'class'
         53        ASSIGN_DIM                                               !1, ~40
         54        OP_DATA                                                  !4
   26    55    > > JMP                                                      ->4
         56    >   FE_FREE                                                  $9
   40    57      > FE_RESET_R                                       $42     !1, ->65
         58    > > FE_FETCH_R                                       ~43     $42, !3, ->65
         59    >   ASSIGN                                                   !5, ~43
   42    60        INIT_ARRAY                                       ~46     !5, 'class'
   43    61        ADD_ARRAY_ELEMENT                                ~46     !3, 'sub'
   41    62        ASSIGN_DIM                                               !2
   43    63        OP_DATA                                                  ~46
   40    64      > JMP                                                      ->58
         65    >   FE_FREE                                                  $42
   47    66        ECHO                                                     '%3Cpre%3E'
         67        INIT_FCALL                                               'print_r'
         68        SEND_VAR                                                 !2
         69        DO_ICALL                                                 
         70        ECHO                                                     '%3C%2Fpre%3E'
         71      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
175.55 ms | 1404 KiB | 17 Q