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<?php echo $_SERVER['HTTP_USER_AGENT']; ?> <pre> <?php print_r($_SERVER); ?> </pre>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/q1dE9
function name:  (null)
number of ops:  10
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   FETCH_R                      global              ~0      '_SERVER'
          1        FETCH_DIM_R                                      ~1      ~0, 'HTTP_USER_AGENT'
          2        ECHO                                                     ~1
    6     3        ECHO                                                     '%3Cpre%3E%0A'
    8     4        INIT_FCALL                                               'print_r'
          5        FETCH_R                      global              ~2      '_SERVER'
          6        SEND_VAL                                                 ~2
          7        DO_ICALL                                                 
   10     8        ECHO                                                     '%3C%2Fpre%3E'
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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