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<?php $array = [ [ 'date' => '2017-12-20', 'name' => 'test A', 'kwa' => 'kwa1, kwa2' ], [ 'date' => '2017-12-20', 'name' => 'test B', 'kwa' => '' ], [ 'date' => '2017-12-21', 'name' => 'test C', 'kwa' => 'kwa1' ], [ 'date' => '2017-12-22', 'name' => 'test D', 'kwa' => '' ], [ 'date' => '2017-12-22', 'name' => 'test E', 'kwa' => '' ], ]; $result = []; foreach ($array as $result[$d][] => ['date' => $d]); var_export($result);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 11
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 11
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 11
filename:       /in/ccRYk
function name:  (null)
number of ops:  16
compiled vars:  !0 = $array, !1 = $result, !2 = $d
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   31     1        ASSIGN                                                   !1, <array>
   32     2      > FE_RESET_R                                       $5      !0, ->11
          3    > > FE_FETCH_R                                       ~9      $5, $6, ->11
          4    >   FETCH_LIST_R                                     $7      $6, 'date'
          5        ASSIGN                                                   !2, $7
          6        FREE                                                     $6
          7        FETCH_DIM_W                                      $10     !1, !2
          8        ASSIGN_DIM                                               $10
          9        OP_DATA                                                  ~9
         10      > JMP                                                      ->3
         11    >   FE_FREE                                                  $5
   33    12        INIT_FCALL                                               'var_export'
         13        SEND_VAR                                                 !1
         14        DO_ICALL                                                 
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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