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<?php $domain = 'sdlkfjsdl.gov'; if (gethostbyname($domain) == $domain) { var_dump(checkdnsrr($domain)); var_dump(getmxrr($domain, $mxhosts)); var_dump($mxhosts); } else { echo 'Domain exists'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 23
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 24
Branch analysis from position: 24
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 23
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Tf5sT
function name:  (null)
number of ops:  25
compiled vars:  !0 = $domain, !1 = $mxhosts
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'sdlkfjsdl.gov'
    4     1        INIT_FCALL                                               'gethostbyname'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                         $3      
          4        IS_EQUAL                                                 !0, $3
          5      > JMPZ                                                     ~4, ->23
    5     6    >   INIT_FCALL                                               'var_dump'
          7        INIT_FCALL                                               'checkdnsrr'
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                         $5      
         10        SEND_VAR                                                 $5
         11        DO_ICALL                                                 
    6    12        INIT_FCALL                                               'var_dump'
         13        INIT_FCALL                                               'getmxrr'
         14        SEND_VAR                                                 !0
         15        SEND_REF                                                 !1
         16        DO_ICALL                                         $7      
         17        SEND_VAR                                                 $7
         18        DO_ICALL                                                 
    7    19        INIT_FCALL                                               'var_dump'
         20        SEND_VAR                                                 !1
         21        DO_ICALL                                                 
         22      > JMP                                                      ->24
    9    23    >   ECHO                                                     'Domain+exists'
   10    24    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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