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<?php $items = [ ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ['a' => 'a', 'b' => 'b', 'c'=> 'c', 'd'=>'d', 'e'=>'e', 'f'=>'f'], ]; $iterations = 1000; $start = microtime(true); for ($i=0 ; $i<$iterations ; $i++) { $reduced = array_reduce($items, fn($carry, $scope_items) => [...$carry, ...array_values($scope_items)], []); } $split = microtime(true); for ($i=0 ; $i<$iterations ; $i++) { $item_sets = []; foreach ($items as $scope_items) { $item_sets[] = array_values($scope_items); } $looped = array_merge(...$item_sets); } $end = microtime(TRUE); echo "Reduce: " . ($split-$start)/$iterations . " sec\n"; echo "Merge: " . ($end-$split)/$iterations . " sec\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
2 jumps found. (Code = 44) Position 1 = 18, Position 2 = 8
Branch analysis from position: 18
1 jumps found. (Code = 42) Position 1 = 40
Branch analysis from position: 40
2 jumps found. (Code = 44) Position 1 = 42, Position 2 = 24
Branch analysis from position: 42
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 24
2 jumps found. (Code = 77) Position 1 = 26, Position 2 = 33
Branch analysis from position: 26
2 jumps found. (Code = 78) Position 1 = 27, Position 2 = 33
Branch analysis from position: 27
1 jumps found. (Code = 42) Position 1 = 26
Branch analysis from position: 26
Branch analysis from position: 33
2 jumps found. (Code = 44) Position 1 = 42, Position 2 = 24
Branch analysis from position: 42
Branch analysis from position: 24
Branch analysis from position: 33
Branch analysis from position: 8
2 jumps found. (Code = 44) Position 1 = 18, Position 2 = 8
Branch analysis from position: 18
Branch analysis from position: 8
filename:       /in/JTPZh
function name:  (null)
number of ops:  57
compiled vars:  !0 = $items, !1 = $iterations, !2 = $start, !3 = $i, !4 = $reduced, !5 = $split, !6 = $item_sets, !7 = $scope_items, !8 = $looped, !9 = $end
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
  104     1        ASSIGN                                                   !1, 1000
  106     2        INIT_FCALL                                               'microtime'
          3        SEND_VAL                                                 <true>
          4        DO_ICALL                                         $12     
          5        ASSIGN                                                   !2, $12
  108     6        ASSIGN                                                   !3, 0
          7      > JMP                                                      ->16
  109     8    >   INIT_FCALL                                               'array_reduce'
          9        SEND_VAR                                                 !0
         10        DECLARE_LAMBDA_FUNCTION                          ~15     [0]
         11        SEND_VAL                                                 ~15
         12        SEND_VAL                                                 <array>
         13        DO_ICALL                                         $16     
         14        ASSIGN                                                   !4, $16
  108    15        PRE_INC                                                  !3
         16    >   IS_SMALLER                                               !3, !1
         17      > JMPNZ                                                    ~19, ->8
  112    18    >   INIT_FCALL                                               'microtime'
         19        SEND_VAL                                                 <true>
         20        DO_ICALL                                         $20     
         21        ASSIGN                                                   !5, $20
  114    22        ASSIGN                                                   !3, 0
         23      > JMP                                                      ->40
  115    24    >   ASSIGN                                                   !6, <array>
  116    25      > FE_RESET_R                                       $24     !0, ->33
         26    > > FE_FETCH_R                                               $24, !7, ->33
  117    27    >   INIT_FCALL                                               'array_values'
         28        SEND_VAR                                                 !7
         29        DO_ICALL                                         $26     
         30        ASSIGN_DIM                                               !6
         31        OP_DATA                                                  $26
  116    32      > JMP                                                      ->26
         33    >   FE_FREE                                                  $24
  119    34        INIT_FCALL                                               'array_merge'
         35        SEND_UNPACK                                              !6
         36        CHECK_UNDEF_ARGS                                         
         37        DO_ICALL                                         $27     
         38        ASSIGN                                                   !8, $27
  114    39        PRE_INC                                                  !3
         40    >   IS_SMALLER                                               !3, !1
         41      > JMPNZ                                                    ~30, ->24
  122    42    >   INIT_FCALL                                               'microtime'
         43        SEND_VAL                                                 <true>
         44        DO_ICALL                                         $31     
         45        ASSIGN                                                   !9, $31
  124    46        SUB                                              ~33     !5, !2
         47        DIV                                              ~34     ~33, !1
         48        CONCAT                                           ~35     'Reduce%3A+', ~34
         49        CONCAT                                           ~36     ~35, '+sec%0A'
         50        ECHO                                                     ~36
  125    51        SUB                                              ~37     !9, !5
         52        DIV                                              ~38     ~37, !1
         53        CONCAT                                           ~39     'Merge%3A+', ~38
         54        CONCAT                                           ~40     ~39, '+sec%0A'
         55        ECHO                                                     ~40
         56      > RETURN                                                   1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/JTPZh
function name:  {closure}
number of ops:  10
compiled vars:  !0 = $carry, !1 = $scope_items
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
  109     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        INIT_ARRAY                                       ~2      
          3        ADD_ARRAY_UNPACK                                 ~2      !0
          4        INIT_FCALL                                               'array_values'
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                         $3      
          7        ADD_ARRAY_UNPACK                                 ~2      $3
          8      > RETURN                                                   ~2
          9*     > RETURN                                                   null

End of Dynamic Function 0

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preferences:
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