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<?php $menu = [ [ 'navigationMenuId' => '1', 'subNavigationItems' => [], ], [ 'navigationMenuId' => '2', 'subNavigationItems' => [], ], [ 'navigationMenuId' => '3', 'subNavigationItems' => [ 4 => [ 'navigationMenuId' => '4', 'subNavigationItems' => [], ], 5 => [ 'navigationMenuId' => '5', 'subNavigationItems' => [], ], 6 => [ 'navigationMenuId' => '6', 'subNavigationItems' => [], ], 7 => [ 'navigationMenuId' => '7', 'subNavigationItems' => [], ], ], ], [ 'navigationMenuId' => '8', 'subNavigationItems' => [], ], [ 'navigationMenuId' => '9', 'subNavigationItems' => [ 10 => [ 'navigationMenuId' => '10', 'subNavigationItems' => [], ], 11 => [ 'navigationMenuId' => '11', 'subNavigationItems' => [], ], 12 => [ 'navigationMenuId' => '12', 'subNavigationItems' => [], ], ], ], [ 'navigationMenuId' => '13', 'subNavigationItems' => [], ], ]; function reindexChildren(array $array): array { foreach ($array as &$item) { if ($item['subNavigationItems']) { $item = reindexChildren($item['subNavigationItems']); } } return array_values($array); } var_export( reindexChildren($menu) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/hoiX0
function name:  (null)
number of ops:  8
compiled vars:  !0 = $menu
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   69     1        INIT_FCALL                                               'var_export'
   70     2        INIT_FCALL                                               'reindexchildren'
          3        SEND_VAR                                                 !0
          4        DO_FCALL                                      0  $2      
          5        SEND_VAR                                                 $2
   69     6        DO_ICALL                                                 
   71     7      > RETURN                                                   1

Function reindexchildren:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 2, Position 2 = 12
Branch analysis from position: 2
2 jumps found. (Code = 126) Position 1 = 3, Position 2 = 12
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 11
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 11
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/hoiX0
function name:  reindexChildren
number of ops:  20
compiled vars:  !0 = $array, !1 = $item
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   60     0  E >   RECV                                             !0      
   61     1      > FE_RESET_RW                                      $2      !0, ->12
          2    > > FE_FETCH_RW                                              $2, !1, ->12
   62     3    >   FETCH_DIM_R                                      ~3      !1, 'subNavigationItems'
          4      > JMPZ                                                     ~3, ->11
   63     5    >   INIT_FCALL_BY_NAME                                       'reindexChildren'
          6        CHECK_FUNC_ARG                                           
          7        FETCH_DIM_FUNC_ARG                               $4      !1, 'subNavigationItems'
          8        SEND_FUNC_ARG                                            $4
          9        DO_FCALL                                      0  $5      
         10        ASSIGN                                                   !1, $5
   61    11    > > JMP                                                      ->2
         12    >   FE_FREE                                                  $2
   66    13        INIT_FCALL                                               'array_values'
         14        SEND_VAR                                                 !0
         15        DO_ICALL                                         $7      
         16        VERIFY_RETURN_TYPE                                       $7
         17      > RETURN                                                   $7
   67    18*       VERIFY_RETURN_TYPE                                       
         19*     > RETURN                                                   null

End of function reindexchildren

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