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<?php $arr = [ 0 => [ "u_id" => "9", "u_name" => "Souhaila S.", "r_nb_today" => "7", ], 1 => [ "u_id" => "59", "u_name" => "Cirine E.", "r_nb_today" => "2", ], 2 => [ "u_id" => "64", "u_name" => "Cyrine B.", "r_nb_today" => "1", ], 3 => [ "u_id" => "8", "u_name" => "Jihen B. R.", "r_nb_today" => "1", ], 4 => [ "u_id" => "18", "u_name" => "Otail J.", "r_nb_today" => "0", ], 5 => [ "u_id" => "15", "u_name" => "Rim H.", "r_nb_today" => "0", ], 6 => [ "u_id" => "12", "u_name" => "Bassem D.", "r_nb_today" => "0", ], 7 => [ "u_id" => "75", "u_name" => "Mariem N.", "r_nb_today" => "0", ], 8 => [ "u_id" => "66", "u_name" => "Khaoula K.", "r_nb_today" => "0", ], 9 => [ "u_id" => "74", "u_name" => "Ghada J.", "r_nb_today" => "0", ], 10 => [ "u_id" => "62", "u_name" => "Alaeddine M.", "r_nb_today" => "0", ], 11 => [ "u_id" => "79", "u_name" => "Khaled B.", "r_nb_today" => "0", ], 12 => [ "u_id" => "71", "u_name" => "Desiree Y.", "r_nb_today" => "0", ], ]; $r_nb_today = array_column($arr, 'r_nb_today'); $u_name = array_column($arr, 'u_name'); array_multisort($r_nb_today, SORT_NUMERIC, SORT_DESC, $u_name, SORT_NATURAL, SORT_ASC, $arr); print_r($arr);die; 
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 79) Position 1 = -2
filename:       /in/1NcXc
function name:  (null)
number of ops:  25
compiled vars:  !0 = $arr, !1 = $r_nb_today, !2 = $u_name
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   96     1        INIT_FCALL                                               'array_column'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 'r_nb_today'
          4        DO_ICALL                                         $4      
          5        ASSIGN                                                   !1, $4
   97     6        INIT_FCALL                                               'array_column'
          7        SEND_VAR                                                 !0
          8        SEND_VAL                                                 'u_name'
          9        DO_ICALL                                         $6      
         10        ASSIGN                                                   !2, $6
   98    11        INIT_FCALL                                               'array_multisort'
         12        SEND_REF                                                 !1
         13        SEND_VAL                                                 1
         14        SEND_VAL                                                 3
   99    15        SEND_REF                                                 !2
         16        SEND_VAL                                                 6
         17        SEND_VAL                                                 4
         18        SEND_REF                                                 !0
   98    19        DO_ICALL                                                 
  100    20        INIT_FCALL                                               'print_r'
         21        SEND_VAR                                                 !0
         22        DO_ICALL                                                 
         23      > EXIT                                                     
  101    24*     > RETURN                                                   1

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