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<?php function recurse(&$array, $pid = null) { foreach ($array as $id => $item) { if (isset($item->params->data->menu_display_special) && $item->params->data->menu_display_special == 1) { unset($array[$id]); recurse($array, $item->id); } elseif ($item->parent_id === $pid) { unset($array[$id]); } } } $list = [ 35 => (object)[ 'id' => '2375', 'params' => (object)[ 'data' => (object)[ 'menu_display_special' => '1' ] ], 'parent_id' => '2376', 'parent' => false ], 36 => (object)[ 'id' => '2377', 'params' => (object)[ 'data' => (object)[ 'menu_display_special' => '1' ] ], 'parent_id' => '2376', 'parent' => false ], 37 => (object)[ 'id' => '2379', 'params' => (object)[ 'data' => (object)[ 'menu_display_special' => '1' ] ], 'parent_id' => '2377', 'parent' => false ], 38 => (object)[ 'id' => '2380', 'params' => (object)[ 'data' => (object)[ 'menu_display_special' => '1' ] ], 'parent_id' => '2377', 'parent' => false ], 39 => (object)[ 'id' => '2381', 'params' => (object)[ 'data' => (object)[] ], 'parent_id' => '2377', 'parent' => false ], 40 => (object)[ 'id' => '2378', 'params' => (object)[ 'data' => (object)[] ], 'parent_id' => '2376', 'parent' => false ], ]; recurse($list); var_export($list);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/bNM61
function name:  (null)
number of ops:  62
compiled vars:  !0 = $list
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   15     0  E >   INIT_ARRAY                                       ~1      '2375', 'id'
   18     1        CAST                                          8  ~2      <array>
          2        INIT_ARRAY                                       ~3      ~2, 'data'
          3        CAST                                          8  ~4      ~3
          4        ADD_ARRAY_ELEMENT                                ~1      ~4, 'params'
   21     5        ADD_ARRAY_ELEMENT                                ~1      '2376', 'parent_id'
   15     6        ADD_ARRAY_ELEMENT                                ~1      <false>, 'parent'
          7        CAST                                          8  ~5      ~1
          8        INIT_ARRAY                                       ~6      ~5, 35
   25     9        INIT_ARRAY                                       ~7      '2377', 'id'
   28    10        CAST                                          8  ~8      <array>
         11        INIT_ARRAY                                       ~9      ~8, 'data'
         12        CAST                                          8  ~10     ~9
         13        ADD_ARRAY_ELEMENT                                ~7      ~10, 'params'
   31    14        ADD_ARRAY_ELEMENT                                ~7      '2376', 'parent_id'
   25    15        ADD_ARRAY_ELEMENT                                ~7      <false>, 'parent'
         16        CAST                                          8  ~11     ~7
         17        ADD_ARRAY_ELEMENT                                ~6      ~11, 36
   35    18        INIT_ARRAY                                       ~12     '2379', 'id'
   38    19        CAST                                          8  ~13     <array>
         20        INIT_ARRAY                                       ~14     ~13, 'data'
         21        CAST                                          8  ~15     ~14
         22        ADD_ARRAY_ELEMENT                                ~12     ~15, 'params'
   41    23        ADD_ARRAY_ELEMENT                                ~12     '2377', 'parent_id'
   35    24        ADD_ARRAY_ELEMENT                                ~12     <false>, 'parent'
         25        CAST                                          8  ~16     ~12
         26        ADD_ARRAY_ELEMENT                                ~6      ~16, 37
   45    27        INIT_ARRAY                                       ~17     '2380', 'id'
   48    28        CAST                                          8  ~18     <array>
         29        INIT_ARRAY                                       ~19     ~18, 'data'
         30        CAST                                          8  ~20     ~19
         31        ADD_ARRAY_ELEMENT                                ~17     ~20, 'params'
   51    32        ADD_ARRAY_ELEMENT                                ~17     '2377', 'parent_id'
   45    33        ADD_ARRAY_ELEMENT                                ~17     <false>, 'parent'
         34        CAST                                          8  ~21     ~17
         35        ADD_ARRAY_ELEMENT                                ~6      ~21, 38
   55    36        INIT_ARRAY                                       ~22     '2381', 'id'
   57    37        CAST                                          8  ~23     <array>
         38        INIT_ARRAY                                       ~24     ~23, 'data'
         39        CAST                                          8  ~25     ~24
         40        ADD_ARRAY_ELEMENT                                ~22     ~25, 'params'
   59    41        ADD_ARRAY_ELEMENT                                ~22     '2377', 'parent_id'
   55    42        ADD_ARRAY_ELEMENT                                ~22     <false>, 'parent'
         43        CAST                                          8  ~26     ~22
         44        ADD_ARRAY_ELEMENT                                ~6      ~26, 39
   63    45        INIT_ARRAY                                       ~27     '2378', 'id'
   65    46        CAST                                          8  ~28     <array>
         47        INIT_ARRAY                                       ~29     ~28, 'data'
         48        CAST                                          8  ~30     ~29
         49        ADD_ARRAY_ELEMENT                                ~27     ~30, 'params'
   67    50        ADD_ARRAY_ELEMENT                                ~27     '2376', 'parent_id'
   63    51        ADD_ARRAY_ELEMENT                                ~27     <false>, 'parent'
         52        CAST                                          8  ~31     ~27
         53        ADD_ARRAY_ELEMENT                                ~6      ~31, 40
   13    54        ASSIGN                                                   !0, ~6
   72    55        INIT_FCALL                                               'recurse'
         56        SEND_REF                                                 !0
         57        DO_FCALL                                      0          
   73    58        INIT_FCALL                                               'var_export'
         59        SEND_VAR                                                 !0
         60        DO_ICALL                                                 
         61      > RETURN                                                   1

Function recurse:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 28
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 28
Branch analysis from position: 4
2 jumps found. (Code = 46) Position 1 = 9, Position 2 = 14
Branch analysis from position: 9
2 jumps found. (Code = 43) Position 1 = 15, Position 2 = 23
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 27
Branch analysis from position: 27
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 23
2 jumps found. (Code = 43) Position 1 = 26, Position 2 = 27
Branch analysis from position: 26
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 27
Branch analysis from position: 14
Branch analysis from position: 28
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 28
filename:       /in/bNM61
function name:  recurse
number of ops:  30
compiled vars:  !0 = $array, !1 = $pid, !2 = $item, !3 = $id
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
          1        RECV_INIT                                        !1      null
    3     2      > FE_RESET_R                                       $4      !0, ->28
          3    > > FE_FETCH_R                                       ~5      $4, !2, ->28
          4    >   ASSIGN                                                   !3, ~5
    4     5        FETCH_OBJ_IS                                     ~7      !2, 'params'
          6        FETCH_OBJ_IS                                     ~8      ~7, 'data'
          7        ISSET_ISEMPTY_PROP_OBJ                           ~9      ~8, 'menu_display_special'
          8      > JMPZ_EX                                          ~9      ~9, ->14
          9    >   FETCH_OBJ_R                                      ~10     !2, 'params'
         10        FETCH_OBJ_R                                      ~11     ~10, 'data'
         11        FETCH_OBJ_R                                      ~12     ~11, 'menu_display_special'
         12        IS_EQUAL                                         ~13     ~12, 1
         13        BOOL                                             ~9      ~13
         14    > > JMPZ                                                     ~9, ->23
    5    15    >   UNSET_DIM                                                !0, !3
    6    16        INIT_FCALL_BY_NAME                                       'recurse'
         17        SEND_VAR_EX                                              !0
         18        CHECK_FUNC_ARG                                           
         19        FETCH_OBJ_FUNC_ARG                               $14     !2, 'id'
         20        SEND_FUNC_ARG                                            $14
         21        DO_FCALL                                      0          
    4    22      > JMP                                                      ->27
    7    23    >   FETCH_OBJ_R                                      ~16     !2, 'parent_id'
         24        IS_IDENTICAL                                             !1, ~16
         25      > JMPZ                                                     ~17, ->27
    8    26    >   UNSET_DIM                                                !0, !3
    3    27    > > JMP                                                      ->3
         28    >   FE_FREE                                                  $4
   11    29      > RETURN                                                   null

End of function recurse

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