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<?php $data = [ [ 'id' => 2, 'position' => 3, ], [ 'id' => 1, 'position' => 2, ], [ 'id' => 1, 'position' => 1, ], [ 'id' => 2, 'position' => 2, ], [ 'id' => 2, 'position' => 1, ], [ 'id' => 1, 'position' => 3, ], ]; usort( $data, function ($a, $b) { if ($a['id'] == $b['id'] && $a['position'] == $b['position']) { return 0; } return ($a['id'] < $b['id'] && $a['position'] < $b['position']) ? -1 : 1; } ); var_dump($data);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/7kke9
function name:  (null)
number of ops:  10
compiled vars:  !0 = $data
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   30     1        INIT_FCALL                                               'usort'
   31     2        SEND_REF                                                 !0
   32     3        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2F7kke9%3A32%240'
   38     4        SEND_VAL                                                 ~2
          5        DO_ICALL                                                 
   41     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2F7kke9%3A32%240:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 6, Position 2 = 10
Branch analysis from position: 6
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 12
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
2 jumps found. (Code = 46) Position 1 = 16, Position 2 = 20
Branch analysis from position: 16
2 jumps found. (Code = 43) Position 1 = 21, Position 2 = 23
Branch analysis from position: 21
1 jumps found. (Code = 42) Position 1 = 24
Branch analysis from position: 24
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 23
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 20
Branch analysis from position: 10
filename:       /in/7kke9
function name:  {closure}
number of ops:  26
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   32     0  E >   RECV                                             !0      
          1        RECV                                             !1      
   33     2        FETCH_DIM_R                                      ~2      !0, 'id'
          3        FETCH_DIM_R                                      ~3      !1, 'id'
          4        IS_EQUAL                                         ~4      ~2, ~3
          5      > JMPZ_EX                                          ~4      ~4, ->10
          6    >   FETCH_DIM_R                                      ~5      !0, 'position'
          7        FETCH_DIM_R                                      ~6      !1, 'position'
          8        IS_EQUAL                                         ~7      ~5, ~6
          9        BOOL                                             ~4      ~7
         10    > > JMPZ                                                     ~4, ->12
   34    11    > > RETURN                                                   0
   37    12    >   FETCH_DIM_R                                      ~8      !0, 'id'
         13        FETCH_DIM_R                                      ~9      !1, 'id'
         14        IS_SMALLER                                       ~10     ~8, ~9
         15      > JMPZ_EX                                          ~10     ~10, ->20
         16    >   FETCH_DIM_R                                      ~11     !0, 'position'
         17        FETCH_DIM_R                                      ~12     !1, 'position'
         18        IS_SMALLER                                       ~13     ~11, ~12
         19        BOOL                                             ~10     ~13
         20    > > JMPZ                                                     ~10, ->23
         21    >   QM_ASSIGN                                        ~14     -1
         22      > JMP                                                      ->24
         23    >   QM_ASSIGN                                        ~14     1
         24    > > RETURN                                                   ~14
   38    25*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2F7kke9%3A32%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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188.14 ms | 1405 KiB | 17 Q