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<?php $array = [ (object)['id' => 8], (object)['id' => 7], (object)['id' => 5] ]; $order = [5, 8, 1]; $order = array_flip($order); $order[''] = max(array_column($array, 'id')) + 1; usort($array, function($a, $b) use ($order) { return ($order[$a->id] ?? $order['']) <=> ($order[$b->id] ?? $order['']); }); var_export($array);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/LsI37
function name:  (null)
number of ops:  32
compiled vars:  !0 = $array, !1 = $order
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   CAST                                          8  ~2      <array>
          1        INIT_ARRAY                                       ~3      ~2
    4     2        CAST                                          8  ~4      <array>
          3        ADD_ARRAY_ELEMENT                                ~3      ~4
    5     4        CAST                                          8  ~5      <array>
          5        ADD_ARRAY_ELEMENT                                ~3      ~5
    2     6        ASSIGN                                                   !0, ~3
    8     7        ASSIGN                                                   !1, <array>
   10     8        INIT_FCALL                                               'array_flip'
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                         $8      
         11        ASSIGN                                                   !1, $8
   11    12        INIT_FCALL                                               'max'
         13        INIT_FCALL                                               'array_column'
         14        SEND_VAR                                                 !0
         15        SEND_VAL                                                 'id'
         16        DO_ICALL                                         $11     
         17        SEND_VAR                                                 $11
         18        DO_ICALL                                         $12     
         19        ADD                                              ~13     $12, 1
         20        ASSIGN_DIM                                               !1, ''
         21        OP_DATA                                                  ~13
   13    22        INIT_FCALL                                               'usort'
         23        SEND_REF                                                 !0
         24        DECLARE_LAMBDA_FUNCTION                          ~14     [0]
         25        BIND_LEXICAL                                             ~14, !1
   15    26        SEND_VAL                                                 ~14
   13    27        DO_ICALL                                                 
   16    28        INIT_FCALL                                               'var_export'
         29        SEND_VAR                                                 !0
         30        DO_ICALL                                                 
         31      > 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/LsI37
function name:  {closure}
number of ops:  16
compiled vars:  !0 = $a, !1 = $b, !2 = $order
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   RECV                                             !0      
          1        RECV                                             !1      
          2        BIND_STATIC                                              !2
   14     3        FETCH_OBJ_R                                      ~3      !0, 'id'
          4        FETCH_DIM_IS                                     ~4      !2, ~3
          5        COALESCE                                         ~5      ~4
          6        FETCH_DIM_R                                      ~6      !2, ''
          7        QM_ASSIGN                                        ~5      ~6
          8        FETCH_OBJ_R                                      ~7      !1, 'id'
          9        FETCH_DIM_IS                                     ~8      !2, ~7
         10        COALESCE                                         ~9      ~8
         11        FETCH_DIM_R                                      ~10     !2, ''
         12        QM_ASSIGN                                        ~9      ~10
         13        SPACESHIP                                        ~11     ~5, ~9
         14      > RETURN                                                   ~11
   15    15*     > RETURN                                                   null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.0.0


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