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<?php $a = (object) array();$b = (object) array();function object_handle($object){ static $mask = 0; if (!$mask) { $obj = (object) array(); $mask = hexdec(substr(spl_object_hash($obj), 0, 16)); foreach (debug_backtrace(PHP_VERSION_ID >= 50400 ? DEBUG_BACKTRACE_IGNORE_ARGS : false) as $frame) { if (isset($frame['function'][0]) && !isset($frame['class']) && 'o' === $frame['function'][0] && in_array($frame['function'], array('ob_clean','ob_end_clean','ob_flush','ob_end_flush','ob_get_contents','ob_get_flush'), true)) { $frame = false; break; } } if ($frame) { ob_start(); debug_zval_dump($obj); $mask ^= substr(ob_get_clean(), 17); } } return hexdec(substr(spl_object_hash($object), 0, 16)) ^ $mask;}ob_start('abc');ob_end_flush();$o = [];echo object_handle($o[]=(object) array()), "\n";echo object_handle($o[]=(object) array()), "\n";echo object_handle($o[]=(object) array()), "\n";echo object_handle($o[]=(object) array()), "\n";echo object_handle($o[]=(object) array()), "\n";echo object_handle($o[]=(object) array()), "\n";echo object_handle($o[]=(object) array()), "\n";echo object_handle($b), "\n";echo object_handle($a), "\n";function abc(){ global $a; return object_handle($a);}
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/c9BfP
function name:  (null)
number of ops:  77
compiled vars:  !0 = $a, !1 = $b, !2 = $o
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    1     0  E >   CAST                                          8  ~3      <array>
          1        ASSIGN                                                   !0, ~3
          2        CAST                                          8  ~5      <array>
          3        ASSIGN                                                   !1, ~5
          4        INIT_FCALL                                               'ob_start'
          5        SEND_VAL                                                 'abc'
          6        DO_ICALL                                                 
          7        INIT_FCALL                                               'ob_end_flush'
          8        DO_ICALL                                                 
          9        ASSIGN                                                   !2, <array>
         10        INIT_FCALL                                               'object_handle'
         11        CAST                                          8  ~11     <array>
         12        ASSIGN_DIM                                       ~10     !2
         13        OP_DATA                                                  ~11
         14        SEND_VAL                                                 ~10
         15        DO_FCALL                                      0  $12     
         16        ECHO                                                     $12
         17        ECHO                                                     '%0A'
         18        INIT_FCALL                                               'object_handle'
         19        CAST                                          8  ~14     <array>
         20        ASSIGN_DIM                                       ~13     !2
         21        OP_DATA                                                  ~14
         22        SEND_VAL                                                 ~13
         23        DO_FCALL                                      0  $15     
         24        ECHO                                                     $15
         25        ECHO                                                     '%0A'
         26        INIT_FCALL                                               'object_handle'
         27        CAST                                          8  ~17     <array>
         28        ASSIGN_DIM                                       ~16     !2
         29        OP_DATA                                                  ~17
         30        SEND_VAL                                                 ~16
         31        DO_FCALL                                      0  $18     
         32        ECHO                                                     $18
         33        ECHO                                                     '%0A'
         34        INIT_FCALL                                               'object_handle'
         35        CAST                                          8  ~20     <array>
         36        ASSIGN_DIM                                       ~19     !2
         37        OP_DATA                                                  ~20
         38        SEND_VAL                                                 ~19
         39        DO_FCALL                                      0  $21     
         40        ECHO                                                     $21
         41        ECHO                                                     '%0A'
         42        INIT_FCALL                                               'object_handle'
         43        CAST                                          8  ~23     <array>
         44        ASSIGN_DIM                                       ~22     !2
         45        OP_DATA                                                  ~23
         46        SEND_VAL                                                 ~22
         47        DO_FCALL                                      0  $24     
         48        ECHO                                                     $24
         49        ECHO                                                     '%0A'
         50        INIT_FCALL                                               'object_handle'
         51        CAST                                          8  ~26     <array>
         52        ASSIGN_DIM                                       ~25     !2
         53        OP_DATA                                                  ~26
         54        SEND_VAL                                                 ~25
         55        DO_FCALL                                      0  $27     
         56        ECHO                                                     $27
         57        ECHO                                                     '%0A'
         58        INIT_FCALL                                               'object_handle'
         59        CAST                                          8  ~29     <array>
         60        ASSIGN_DIM                                       ~28     !2
         61        OP_DATA                                                  ~29
         62        SEND_VAL                                                 ~28
         63        DO_FCALL                                      0  $30     
         64        ECHO                                                     $30
         65        ECHO                                                     '%0A'
         66        INIT_FCALL                                               'object_handle'
         67        SEND_VAR                                                 !1
         68        DO_FCALL                                      0  $31     
         69        ECHO                                                     $31
         70        ECHO                                                     '%0A'
         71        INIT_FCALL                                               'object_handle'
         72        SEND_VAR                                                 !0
         73        DO_FCALL                                      0  $32     
         74        ECHO                                                     $32
         75        ECHO                                                     '%0A'
         76      > RETURN                                                   1

Function object_handle:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 60
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 20, Position 2 = 22
Branch analysis from position: 20
1 jumps found. (Code = 42) Position 1 = 23
Branch analysis from position: 23
2 jumps found. (Code = 77) Position 1 = 26, Position 2 = 46
Branch analysis from position: 26
2 jumps found. (Code = 78) Position 1 = 27, Position 2 = 46
Branch analysis from position: 27
2 jumps found. (Code = 46) Position 1 = 30, Position 2 = 33
Branch analysis from position: 30
2 jumps found. (Code = 46) Position 1 = 34, Position 2 = 38
Branch analysis from position: 34
2 jumps found. (Code = 46) Position 1 = 39, Position 2 = 42
Branch analysis from position: 39
2 jumps found. (Code = 43) Position 1 = 43, Position 2 = 45
Branch analysis from position: 43
1 jumps found. (Code = 42) Position 1 = 46
Branch analysis from position: 46
2 jumps found. (Code = 43) Position 1 = 48, Position 2 = 60
Branch analysis from position: 48
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 60
Branch analysis from position: 45
1 jumps found. (Code = 42) Position 1 = 26
Branch analysis from position: 26
Branch analysis from position: 42
Branch analysis from position: 38
Branch analysis from position: 33
Branch analysis from position: 46
Branch analysis from position: 46
Branch analysis from position: 22
2 jumps found. (Code = 77) Position 1 = 26, Position 2 = 46
Branch analysis from position: 26
Branch analysis from position: 46
Branch analysis from position: 60
filename:       /in/c9BfP
function name:  object_handle
number of ops:  74
compiled vars:  !0 = $object, !1 = $mask, !2 = $obj, !3 = $frame
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
          0  E >   RECV                                             !0      
          1        BIND_STATIC                                              !1
          2        BOOL_NOT                                         ~4      !1
          3      > JMPZ                                                     ~4, ->60
          4    >   CAST                                          8  ~5      <array>
          5        ASSIGN                                                   !2, ~5
          6        INIT_FCALL                                               'hexdec'
          7        INIT_FCALL                                               'substr'
          8        INIT_FCALL                                               'spl_object_hash'
          9        SEND_VAR                                                 !2
         10        DO_ICALL                                         $7      
         11        SEND_VAR                                                 $7
         12        SEND_VAL                                                 0
         13        SEND_VAL                                                 16
         14        DO_ICALL                                         $8      
         15        SEND_VAR                                                 $8
         16        DO_ICALL                                         $9      
         17        ASSIGN                                                   !1, $9
         18        INIT_FCALL                                               'debug_backtrace'
         19      > JMPZ                                                     <true>, ->22
         20    >   QM_ASSIGN                                        ~11     2
         21      > JMP                                                      ->23
         22    >   QM_ASSIGN                                        ~11     <false>
         23    >   SEND_VAL                                                 ~11
         24        DO_ICALL                                         $12     
         25      > FE_RESET_R                                       $13     $12, ->46
         26    > > FE_FETCH_R                                               $13, !3, ->46
         27    >   FETCH_DIM_IS                                     ~14     !3, 'function'
         28        ISSET_ISEMPTY_DIM_OBJ                         0  ~15     ~14, 0
         29      > JMPZ_EX                                          ~15     ~15, ->33
         30    >   ISSET_ISEMPTY_DIM_OBJ                         0  ~16     !3, 'class'
         31        BOOL_NOT                                         ~17     ~16
         32        BOOL                                             ~15     ~17
         33    > > JMPZ_EX                                          ~15     ~15, ->38
         34    >   FETCH_DIM_R                                      ~18     !3, 'function'
         35        FETCH_DIM_R                                      ~19     ~18, 0
         36        IS_IDENTICAL                                     ~20     ~19, 'o'
         37        BOOL                                             ~15     ~20
         38    > > JMPZ_EX                                          ~15     ~15, ->42
         39    >   FETCH_DIM_R                                      ~21     !3, 'function'
         40        IN_ARRAY                                         ~22     ~21, <array>
         41        BOOL                                             ~15     ~22
         42    > > JMPZ                                                     ~15, ->45
         43    >   ASSIGN                                                   !3, <false>
         44      > JMP                                                      ->46
         45    > > JMP                                                      ->26
         46    >   FE_FREE                                                  $13
         47      > JMPZ                                                     !3, ->60
         48    >   INIT_FCALL                                               'ob_start'
         49        DO_ICALL                                                 
         50        INIT_FCALL                                               'debug_zval_dump'
         51        SEND_VAR                                                 !2
         52        DO_ICALL                                                 
         53        INIT_FCALL                                               'substr'
         54        INIT_FCALL                                               'ob_get_clean'
         55        DO_ICALL                                         $26     
         56        SEND_VAR                                                 $26
         57        SEND_VAL                                                 17
         58        DO_ICALL                                         $27     
         59        ASSIGN_OP                                    11          !1, $27
         60    >   INIT_FCALL                                               'hexdec'
         61        INIT_FCALL                                               'substr'
         62        INIT_FCALL                                               'spl_object_hash'
         63        SEND_VAR                                                 !0
         64        DO_ICALL                                         $29     
         65        SEND_VAR                                                 $29
         66        SEND_VAL                                                 0
         67        SEND_VAL                                                 16
         68        DO_ICALL                                         $30     
         69        SEND_VAR                                                 $30
         70        DO_ICALL                                         $31     
         71        BW_XOR                                           ~32     !1, $31
         72      > RETURN                                                   ~32
         73*     > RETURN                                                   null

End of function object_handle

Function abc:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/c9BfP
function name:  abc
number of ops:  6
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
          0  E >   BIND_GLOBAL                                              !0, 'a'
          1        INIT_FCALL                                               'object_handle'
          2        SEND_VAR                                                 !0
          3        DO_FCALL                                      0  $1      
          4      > RETURN                                                   $1
          5*     > RETURN                                                   null

End of function abc

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
153.74 ms | 1411 KiB | 39 Q