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<?php if (checkdnsrr('gezlev.ru', 'A')) // or use ANY or for other see above link { echo 'Domain exists'; } else { echo 'Domain does not exist'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 7
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QmXs7
function name:  (null)
number of ops:  9
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'checkdnsrr'
          1        SEND_VAL                                                 'gezlev.ru'
          2        SEND_VAL                                                 'A'
          3        DO_ICALL                                         $0      
          4      > JMPZ                                                     $0, ->7
    5     5    >   ECHO                                                     'Domain+exists'
          6      > JMP                                                      ->8
    9     7    >   ECHO                                                     'Domain+does+not+exist'
   10     8    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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