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<?php $obj1 = new stdClass(); $obj1->attr = 'Rod'; $obj2 = new stdClass(); $obj2->attr = 'Jane'; $obj3 = new stdClass(); $obj3->attr = 'Freddy'; $array1 = array( $obj1, $obj2, $obj3 ); $array2 = array( $obj1, $obj3, $obj2 ); function return1($a,$b) { if ($a->attr == $b->attr) { return 0; } else { return 1; } } function returnNeg1($a,$b) { if ($a->attr == $b->attr) { return 0; } else { return -1; } } //$diff1 = array_diff($array1, $array2); $diff2 = array_udiff($array1, $array2, 'returnNeg1'); $diff3 = array_udiff($array1, $array2, 'return1'); //$int = array_intersect($array1, $array2); $int2 = array_uintersect($array1, $array2, 'returnNeg1'); $int3 = array_uintersect($array1, $array2, 'return1'); //var_dump($diff1); var_dump($diff2); var_dump($diff3); //var_dump($int1); var_dump($int2); var_dump($int3);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/cCsoJ
function name:  (null)
number of ops:  60
compiled vars:  !0 = $obj1, !1 = $obj2, !2 = $obj3, !3 = $array1, !4 = $array2, !5 = $diff2, !6 = $diff3, !7 = $int2, !8 = $int3
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $9      'stdClass'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $9
    4     3        ASSIGN_OBJ                                               !0, 'attr'
          4        OP_DATA                                                  'Rod'
    6     5        NEW                                              $13     'stdClass'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $13
    7     8        ASSIGN_OBJ                                               !1, 'attr'
          9        OP_DATA                                                  'Jane'
    9    10        NEW                                              $17     'stdClass'
         11        DO_FCALL                                      0          
         12        ASSIGN                                                   !2, $17
   10    13        ASSIGN_OBJ                                               !2, 'attr'
         14        OP_DATA                                                  'Freddy'
   13    15        INIT_ARRAY                                       ~21     !0
   14    16        ADD_ARRAY_ELEMENT                                ~21     !1
   15    17        ADD_ARRAY_ELEMENT                                ~21     !2
   12    18        ASSIGN                                                   !3, ~21
   19    19        INIT_ARRAY                                       ~23     !0
   20    20        ADD_ARRAY_ELEMENT                                ~23     !2
   21    21        ADD_ARRAY_ELEMENT                                ~23     !1
   18    22        ASSIGN                                                   !4, ~23
   41    23        INIT_FCALL                                               'array_udiff'
         24        SEND_VAR                                                 !3
         25        SEND_VAR                                                 !4
         26        SEND_VAL                                                 'returnNeg1'
         27        DO_ICALL                                         $25     
         28        ASSIGN                                                   !5, $25
   42    29        INIT_FCALL                                               'array_udiff'
         30        SEND_VAR                                                 !3
         31        SEND_VAR                                                 !4
         32        SEND_VAL                                                 'return1'
         33        DO_ICALL                                         $27     
         34        ASSIGN                                                   !6, $27
   45    35        INIT_FCALL                                               'array_uintersect'
         36        SEND_VAR                                                 !3
         37        SEND_VAR                                                 !4
         38        SEND_VAL                                                 'returnNeg1'
         39        DO_ICALL                                         $29     
         40        ASSIGN                                                   !7, $29
   46    41        INIT_FCALL                                               'array_uintersect'
         42        SEND_VAR                                                 !3
         43        SEND_VAR                                                 !4
         44        SEND_VAL                                                 'return1'
         45        DO_ICALL                                         $31     
         46        ASSIGN                                                   !8, $31
   49    47        INIT_FCALL                                               'var_dump'
         48        SEND_VAR                                                 !5
         49        DO_ICALL                                                 
   50    50        INIT_FCALL                                               'var_dump'
         51        SEND_VAR                                                 !6
         52        DO_ICALL                                                 
   53    53        INIT_FCALL                                               'var_dump'
         54        SEND_VAR                                                 !7
         55        DO_ICALL                                                 
   54    56        INIT_FCALL                                               'var_dump'
         57        SEND_VAR                                                 !8
         58        DO_ICALL                                                 
         59      > RETURN                                                   1

Function return1:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 8
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/cCsoJ
function name:  return1
number of ops:  10
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   24     0  E >   RECV                                             !0      
          1        RECV                                             !1      
   25     2        FETCH_OBJ_R                                      ~2      !0, 'attr'
          3        FETCH_OBJ_R                                      ~3      !1, 'attr'
          4        IS_EQUAL                                                 ~2, ~3
          5      > JMPZ                                                     ~4, ->8
   26     6    > > RETURN                                                   0
          7*       JMP                                                      ->9
   28     8    > > RETURN                                                   1
   30     9*     > RETURN                                                   null

End of function return1

Function returnneg1:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 8
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/cCsoJ
function name:  returnNeg1
number of ops:  10
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_OBJ_R                                      ~2      !0, 'attr'
          3        FETCH_OBJ_R                                      ~3      !1, 'attr'
          4        IS_EQUAL                                                 ~2, ~3
          5      > JMPZ                                                     ~4, ->8
   34     6    > > RETURN                                                   0
          7*       JMP                                                      ->9
   36     8    > > RETURN                                                   -1
   38     9*     > RETURN                                                   null

End of function returnneg1

Generated using Vulcan Logic Dumper, using php 8.0.0


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