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<?php $array = [ [2015 => '2015'], [2016 => '2016'], [2017 => '2017'], [2018 => '2018'], [2019 => '2019'], [2020 => '2020'], [2021 => '2021'], [2022 => '2022'], [2023 => '2023'] ]; var_export( array_reduce( $array, fn($result, $row) => array_replace($result, $row), [] ) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jCebV
function name:  (null)
number of ops:  11
compiled vars:  !0 = $array
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
   15     1        INIT_FCALL                                                   'var_export'
   16     2        INIT_FCALL                                                   'array_reduce'
   17     3        SEND_VAR                                                     !0
   18     4        DECLARE_LAMBDA_FUNCTION                              ~2      [0]
          5        SEND_VAL                                                     ~2
   19     6        SEND_VAL                                                     <array>
   16     7        DO_ICALL                                             $3      
   19     8        SEND_VAR                                                     $3
   15     9        DO_ICALL                                                     
   21    10      > 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/jCebV
function name:  {closure:/in/jCebV:18}
number of ops:  8
compiled vars:  !0 = $result, !1 = $row
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   18     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
          2        INIT_FCALL                                                   'array_replace'
          3        SEND_VAR                                                     !0
          4        SEND_VAR                                                     !1
          5        DO_ICALL                                             $2      
          6      > RETURN                                                       $2
          7*     > RETURN                                                       null

End of Dynamic Function 0

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