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<?php $array = [ [ ["2011-11-18 00:00:00" => 'C'], ["2011-11-18 00:00:00" => 'I'], ["2011-11-18 00:00:00" => 'S'], ], [ ["2011-11-22 00:00:00" => 'C'], ["2011-11-22 00:00:00" => 'S'] ] ]; $result = []; foreach ($array as $set) { $result[key($set[0])] = count($set); } var_export($result);
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/62IZf
function name:  (null)
number of ops:  17
compiled vars:  !0 = $array, !1 = $result, !2 = $set
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   15     1        ASSIGN                                                   !1, <array>
   16     2      > FE_RESET_R                                       $5      !0, ->12
          3    > > FE_FETCH_R                                               $5, !2, ->12
   17     4    >   INIT_FCALL                                               'key'
          5        FETCH_DIM_R                                      ~6      !2, 0
          6        SEND_VAL                                                 ~6
          7        DO_ICALL                                         $7      
          8        COUNT                                            ~9      !2
          9        ASSIGN_DIM                                               !1, $7
         10        OP_DATA                                                  ~9
   16    11      > JMP                                                      ->3
         12    >   FE_FREE                                                  $5
   19    13        INIT_FCALL                                               'var_export'
         14        SEND_VAR                                                 !1
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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