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<?php var_dump( implode('-', [ bin2hex(random_bytes(4)), bin2hex(random_bytes(2)), bin2hex((random_bytes(1) & 0x0F) | 0x40) . bin2hex(random_bytes(1)), bin2hex((random_bytes(1) & 0x3F) | 0x80) . bin2hex(random_bytes(1)), bin2hex(random_bytes(12)) ]) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Iaott
function name:  (null)
number of ops:  61
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
    4     1        INIT_FCALL                                               'implode'
          2        SEND_VAL                                                 '-'
    5     3        INIT_FCALL                                               'bin2hex'
          4        INIT_FCALL                                               'random_bytes'
          5        SEND_VAL                                                 4
          6        DO_ICALL                                         $0      
          7        SEND_VAR                                                 $0
          8        DO_ICALL                                         $1      
          9        INIT_ARRAY                                       ~2      $1
    6    10        INIT_FCALL                                               'bin2hex'
         11        INIT_FCALL                                               'random_bytes'
         12        SEND_VAL                                                 2
         13        DO_ICALL                                         $3      
         14        SEND_VAR                                                 $3
         15        DO_ICALL                                         $4      
         16        ADD_ARRAY_ELEMENT                                ~2      $4
    7    17        INIT_FCALL                                               'bin2hex'
         18        INIT_FCALL                                               'random_bytes'
         19        SEND_VAL                                                 1
         20        DO_ICALL                                         $5      
         21        BW_AND                                           ~6      $5, 15
         22        BW_OR                                            ~7      ~6, 64
         23        SEND_VAL                                                 ~7
         24        DO_ICALL                                         $8      
         25        INIT_FCALL                                               'bin2hex'
         26        INIT_FCALL                                               'random_bytes'
         27        SEND_VAL                                                 1
         28        DO_ICALL                                         $9      
         29        SEND_VAR                                                 $9
         30        DO_ICALL                                         $10     
         31        CONCAT                                           ~11     $8, $10
         32        ADD_ARRAY_ELEMENT                                ~2      ~11
    8    33        INIT_FCALL                                               'bin2hex'
         34        INIT_FCALL                                               'random_bytes'
         35        SEND_VAL                                                 1
         36        DO_ICALL                                         $12     
         37        BW_AND                                           ~13     $12, 63
         38        BW_OR                                            ~14     ~13, 128
         39        SEND_VAL                                                 ~14
         40        DO_ICALL                                         $15     
         41        INIT_FCALL                                               'bin2hex'
         42        INIT_FCALL                                               'random_bytes'
         43        SEND_VAL                                                 1
         44        DO_ICALL                                         $16     
         45        SEND_VAR                                                 $16
         46        DO_ICALL                                         $17     
         47        CONCAT                                           ~18     $15, $17
         48        ADD_ARRAY_ELEMENT                                ~2      ~18
    9    49        INIT_FCALL                                               'bin2hex'
         50        INIT_FCALL                                               'random_bytes'
         51        SEND_VAL                                                 12
         52        DO_ICALL                                         $19     
         53        SEND_VAR                                                 $19
         54        DO_ICALL                                         $20     
         55        ADD_ARRAY_ELEMENT                                ~2      $20
         56        SEND_VAL                                                 ~2
         57        DO_ICALL                                         $21     
         58        SEND_VAR                                                 $21
         59        DO_ICALL                                                 
   11    60      > RETURN                                                   1

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