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<?php $arr = Array ( '0' => Array ( 'number' => 2, 'name' => 'ABC' ), '1' => Array ( 'number' => 3, 'name' => 'ABC' ), '2' => Array ( 'number' => 1, 'name' => 'XYZ' ), '3' => Array ( 'number' => 2, 'name' => 'XYZ' ) ); $res = []; array_map(function($v) use (&$res){ array_key_exists($v['name'], $res) ? ($res[$v['name']]['number'] = $res[$v['name']]['number'].','.$v['number']) : ($res[$v['name']] = ['number' => $v['number'],'name' => $v['name']]) ; }, $arr); $res = array_values($res); echo '<pre>'; print_r($res);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lEDHH
function name:  (null)
number of ops:  17
compiled vars:  !0 = $arr, !1 = $res
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   29     1        ASSIGN                                                   !1, <array>
   30     2        INIT_FCALL                                               'array_map'
          3        DECLARE_LAMBDA_FUNCTION                          ~4      [0]
          4        BIND_LEXICAL                                             ~4, !1
   36     5        SEND_VAL                                                 ~4
          6        SEND_VAR                                                 !0
   30     7        DO_ICALL                                                 
   37     8        INIT_FCALL                                               'array_values'
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                         $6      
         11        ASSIGN                                                   !1, $6
   38    12        ECHO                                                     '%3Cpre%3E'
   39    13        INIT_FCALL                                               'print_r'
         14        SEND_VAR                                                 !1
         15        DO_ICALL                                                 
         16      > RETURN                                                   1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 17
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 25
Branch analysis from position: 25
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lEDHH
function name:  {closure}
number of ops:  27
compiled vars:  !0 = $v, !1 = $res
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   30     0  E >   RECV                                             !0      
          1        BIND_STATIC                                              !1
   31     2        FETCH_DIM_R                                      ~2      !0, 'name'
          3        ARRAY_KEY_EXISTS                                         ~2, !1
          4      > JMPZ                                                     ~3, ->17
   32     5    >   FETCH_DIM_R                                      ~4      !0, 'name'
          6        FETCH_DIM_R                                      ~7      !0, 'name'
          7        FETCH_DIM_R                                      ~8      !1, ~7
          8        FETCH_DIM_R                                      ~9      ~8, 'number'
          9        CONCAT                                           ~10     ~9, '%2C'
         10        FETCH_DIM_R                                      ~11     !0, 'number'
         11        CONCAT                                           ~12     ~10, ~11
         12        FETCH_DIM_W                                      $5      !1, ~4
         13        ASSIGN_DIM                                       ~6      $5, 'number'
         14        OP_DATA                                                  ~12
         15        QM_ASSIGN                                        ~13     ~6
         16      > JMP                                                      ->25
   34    17    >   FETCH_DIM_R                                      ~14     !0, 'name'
         18        FETCH_DIM_R                                      ~16     !0, 'number'
         19        INIT_ARRAY                                       ~17     ~16, 'number'
         20        FETCH_DIM_R                                      ~18     !0, 'name'
         21        ADD_ARRAY_ELEMENT                                ~17     ~18, 'name'
         22        ASSIGN_DIM                                       ~15     !1, ~14
         23        OP_DATA                                                  ~17
         24        QM_ASSIGN                                        ~13     ~15
         25    >   FREE                                                     ~13
   36    26      > RETURN                                                   null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.0.0


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