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<?php $dom = new DOMDocument(); $dom->loadHtml(' Hello World have a look at <a href="www.laptops.com/apple">Apple Laptops</a>. For more ino go to <a href="www.apple.com">Apple.com</a> or to <a href="www.appleblog.com">Appleblog.com</a> ', LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD); $xpath = new DOMXPath($dom); foreach ($xpath->query("//a") as $link) { $href = $link->getAttribute('href'); // link has a # in it, so replace with the links title if (strpos($href, 'www.laptops.com') === false) { $link->setAttribute("rel", "nofollow noopener"); } } echo $dom->saveHTML();
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 15, Position 2 = 28
Branch analysis from position: 15
2 jumps found. (Code = 78) Position 1 = 16, Position 2 = 28
Branch analysis from position: 16
2 jumps found. (Code = 43) Position 1 = 23, Position 2 = 27
Branch analysis from position: 23
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
Branch analysis from position: 27
Branch analysis from position: 28
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 28
filename:       /in/DseDi
function name:  (null)
number of ops:  33
compiled vars:  !0 = $dom, !1 = $xpath, !2 = $link, !3 = $href
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    2     0  E >   NEW                                                  $4      'DOMDocument'
          1        DO_FCALL                                          0          
          2        ASSIGN                                                       !0, $4
    4     3        INIT_METHOD_CALL                                             !0, 'loadHtml'
          4        SEND_VAL_EX                                                  '%0AHello+World+have+a+look+at+%3Ca+href%3D%22www.laptops.com%2Fapple%22%3EApple+Laptops%3C%2Fa%3E.+%0A++For+more+ino+go+to+%3Ca+href%3D%22www.apple.com%22%3EApple.com%3C%2Fa%3E+%0A++or+to+%3Ca+href%3D%22www.appleblog.com%22%3EAppleblog.com%3C%2Fa%3E%0A'
    8     5        SEND_VAL_EX                                                  8196
    4     6        DO_FCALL                                          0          
   10     7        NEW                                                  $8      'DOMXPath'
          8        SEND_VAR_EX                                                  !0
          9        DO_FCALL                                          0          
         10        ASSIGN                                                       !1, $8
   12    11        INIT_METHOD_CALL                                             !1, 'query'
         12        SEND_VAL_EX                                                  '%2F%2Fa'
         13        DO_FCALL                                          0  $11     
         14      > FE_RESET_R                                           $12     $11, ->28
         15    > > FE_FETCH_R                                                   $12, !2, ->28
   13    16    >   INIT_METHOD_CALL                                             !2, 'getAttribute'
         17        SEND_VAL_EX                                                  'href'
         18        DO_FCALL                                          0  $13     
         19        ASSIGN                                                       !3, $13
   16    20        FRAMELESS_ICALL_2                strpos              ~15     !3, 'www.laptops.com'
         21        TYPE_CHECK                                        4          ~15
         22      > JMPZ                                                         ~16, ->27
   17    23    >   INIT_METHOD_CALL                                             !2, 'setAttribute'
         24        SEND_VAL_EX                                                  'rel'
         25        SEND_VAL_EX                                                  'nofollow+noopener'
         26        DO_FCALL                                          0          
   12    27    > > JMP                                                          ->15
         28    >   FE_FREE                                                      $12
   21    29        INIT_METHOD_CALL                                             !0, 'saveHTML'
         30        DO_FCALL                                          0  $18     
         31        ECHO                                                         $18
         32      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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