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<?php $a = (object) array(); $b = (object) array(); function object_handle($obj) { static $mask = null; if (null === $mask) { $o = (object) array(); $h = hexdec(substr(spl_object_hash($o), 0, 16)); ob_start(); debug_zval_dump($o); $mask = ob_get_clean(); $mask = $h ^ (int) substr($mask, 1 + strpos($mask, '#')); } return hexdec(substr(spl_object_hash($obj), 0, 16)) ^ $mask; } echo spl_object_hash($b), '-', object_handle($b), "\n"; echo spl_object_hash($a), '-', object_handle($a), "\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CUe6E
function name:  (null)
number of ops:  25
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   CAST                                          8  ~2      <array>
          1        ASSIGN                                                   !0, ~2
    4     2        CAST                                          8  ~4      <array>
          3        ASSIGN                                                   !1, ~4
   22     4        INIT_FCALL                                               'spl_object_hash'
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                         $6      
          7        ECHO                                                     $6
          8        ECHO                                                     '-'
          9        INIT_FCALL                                               'object_handle'
         10        SEND_VAR                                                 !1
         11        DO_FCALL                                      0  $7      
         12        ECHO                                                     $7
         13        ECHO                                                     '%0A'
   23    14        INIT_FCALL                                               'spl_object_hash'
         15        SEND_VAR                                                 !0
         16        DO_ICALL                                         $8      
         17        ECHO                                                     $8
         18        ECHO                                                     '-'
         19        INIT_FCALL                                               'object_handle'
         20        SEND_VAR                                                 !0
         21        DO_FCALL                                      0  $9      
         22        ECHO                                                     $9
         23        ECHO                                                     '%0A'
         24      > RETURN                                                   1

Function object_handle:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 38
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 38
filename:       /in/CUe6E
function name:  object_handle
number of ops:  52
compiled vars:  !0 = $obj, !1 = $mask, !2 = $o, !3 = $h
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   RECV                                             !0      
    8     1        BIND_STATIC                                              !1
   10     2        TYPE_CHECK                                    2          !1
          3      > JMPZ                                                     ~4, ->38
   11     4    >   CAST                                          8  ~5      <array>
          5        ASSIGN                                                   !2, ~5
   12     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                                                   !3, $9
   13    18        INIT_FCALL                                               'ob_start'
         19        DO_ICALL                                                 
   14    20        INIT_FCALL                                               'debug_zval_dump'
         21        SEND_VAR                                                 !2
         22        DO_ICALL                                                 
   15    23        INIT_FCALL                                               'ob_get_clean'
         24        DO_ICALL                                         $13     
         25        ASSIGN                                                   !1, $13
   16    26        INIT_FCALL                                               'substr'
         27        SEND_VAR                                                 !1
         28        INIT_FCALL                                               'strpos'
         29        SEND_VAR                                                 !1
         30        SEND_VAL                                                 '%23'
         31        DO_ICALL                                         $15     
         32        ADD                                              ~16     1, $15
         33        SEND_VAL                                                 ~16
         34        DO_ICALL                                         $17     
         35        CAST                                          4  ~18     $17
         36        BW_XOR                                           ~19     !3, ~18
         37        ASSIGN                                                   !1, ~19
   19    38    >   INIT_FCALL                                               'hexdec'
         39        INIT_FCALL                                               'substr'
         40        INIT_FCALL                                               'spl_object_hash'
         41        SEND_VAR                                                 !0
         42        DO_ICALL                                         $21     
         43        SEND_VAR                                                 $21
         44        SEND_VAL                                                 0
         45        SEND_VAL                                                 16
         46        DO_ICALL                                         $22     
         47        SEND_VAR                                                 $22
         48        DO_ICALL                                         $23     
         49        BW_XOR                                           ~24     !1, $23
         50      > RETURN                                                   ~24
   20    51*     > RETURN                                                   null

End of function object_handle

Generated using Vulcan Logic Dumper, using php 8.0.0


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