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<?php $citiesJson = <<<JSON [{"id":"AA0","name":"Aalen","region":"Süden","state":"Baden-Württemberg"}, {"id":"AB0","name":"Aschaffenburg","region":"Mitte","state":"Bayern"}, {"id":"AC0","name":"Aachen","region":"Westen","state":"Nordrhein-Westfalen"}, {"id":"WIT","name":"Witten","region":"Westen","state":"Nordrhein-Westfalen"}, {"id":"DN0","name":"Düren","region":"Westen","state":"Nordrhein-Westfalen"}] JSON; $cities = json_decode($citiesJson, true); $cities = array_map(function(array $city) { $city['city_region_state'] = sprintf( '%s, %s, %s', $city['name'], $city['region'], $city['state'] ); return $city; }, $cities); $citiesByState = array_reduce($cities, function(array $found, array $city) { $found[$city['state']][] = $city; return $found; }, []); echo json_encode($citiesByState, JSON_PRETTY_PRINT);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/skMWu
function name:  (null)
number of ops:  25
compiled vars:  !0 = $citiesJson, !1 = $cities, !2 = $citiesByState
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%5B%7B%22id%22%3A%22AA0%22%2C%22name%22%3A%22Aalen%22%2C%22region%22%3A%22S%C3%BCden%22%2C%22state%22%3A%22Baden-W%C3%BCrttemberg%22%7D%2C%0A%7B%22id%22%3A%22AB0%22%2C%22name%22%3A%22Aschaffenburg%22%2C%22region%22%3A%22Mitte%22%2C%22state%22%3A%22Bayern%22%7D%2C%0A%7B%22id%22%3A%22AC0%22%2C%22name%22%3A%22Aachen%22%2C%22region%22%3A%22Westen%22%2C%22state%22%3A%22Nordrhein-Westfalen%22%7D%2C%0A%7B%22id%22%3A%22WIT%22%2C%22name%22%3A%22Witten%22%2C%22region%22%3A%22Westen%22%2C%22state%22%3A%22Nordrhein-Westfalen%22%7D%2C%0A%7B%22id%22%3A%22DN0%22%2C%22name%22%3A%22D%C3%BCren%22%2C%22region%22%3A%22Westen%22%2C%22state%22%3A%22Nordrhein-Westfalen%22%7D%5D'
   11     1        INIT_FCALL                                               'json_decode'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 <true>
          4        DO_ICALL                                         $4      
          5        ASSIGN                                                   !1, $4
   13     6        INIT_FCALL                                               'array_map'
          7        DECLARE_LAMBDA_FUNCTION                          ~6      [0]
   22     8        SEND_VAL                                                 ~6
          9        SEND_VAR                                                 !1
   13    10        DO_ICALL                                         $7      
         11        ASSIGN                                                   !1, $7
   24    12        INIT_FCALL                                               'array_reduce'
         13        SEND_VAR                                                 !1
         14        DECLARE_LAMBDA_FUNCTION                          ~9      [1]
   28    15        SEND_VAL                                                 ~9
         16        SEND_VAL                                                 <array>
   24    17        DO_ICALL                                         $10     
         18        ASSIGN                                                   !2, $10
   30    19        INIT_FCALL                                               'json_encode'
         20        SEND_VAR                                                 !2
         21        SEND_VAL                                                 128
         22        DO_ICALL                                         $12     
         23        ECHO                                                     $12
         24      > 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/skMWu
function name:  {closure}
number of ops:  14
compiled vars:  !0 = $city
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   RECV                                             !0      
   14     1        INIT_FCALL                                               'sprintf'
   15     2        SEND_VAL                                                 '%25s%2C+%25s%2C+%25s'
   16     3        FETCH_DIM_R                                      ~2      !0, 'name'
          4        SEND_VAL                                                 ~2
   17     5        FETCH_DIM_R                                      ~3      !0, 'region'
          6        SEND_VAL                                                 ~3
   18     7        FETCH_DIM_R                                      ~4      !0, 'state'
          8        SEND_VAL                                                 ~4
   14     9        DO_ICALL                                         $5      
         10        ASSIGN_DIM                                               !0, 'city_region_state'
   18    11        OP_DATA                                                  $5
   21    12      > RETURN                                                   !0
   22    13*     > RETURN                                                   null

End of Dynamic Function 0

Dynamic Function 1
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/skMWu
function name:  {closure}
number of ops:  8
compiled vars:  !0 = $found, !1 = $city
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   24     0  E >   RECV                                             !0      
          1        RECV                                             !1      
   25     2        FETCH_DIM_R                                      ~2      !1, 'state'
          3        FETCH_DIM_W                                      $3      !0, ~2
          4        ASSIGN_DIM                                               $3
          5        OP_DATA                                                  !1
   27     6      > RETURN                                                   !0
   28     7*     > RETURN                                                   null

End of Dynamic Function 1

Generated using Vulcan Logic Dumper, using php 8.0.0


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