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<?php $data = <<<DATA <div> <p>These line shall stay</p> <p class="myclass">Remove this one</p> <p>But keep this</p> </div> DATA; $dom = new DOMDOcument(); $dom->loadHTML($data); $xpath = new DOMXPath($dom); $lines_to_be_removed = $xpath->query("//*[@class='myclass']"); foreach ($lines_to_be_removed as $line) { $line->parentNode->removeChild($line); } // just to check echo $dom->saveHTML(); ?>
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 16, Position 2 = 22
Branch analysis from position: 16
2 jumps found. (Code = 78) Position 1 = 17, Position 2 = 22
Branch analysis from position: 17
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
Branch analysis from position: 22
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 22
filename:       /in/Etua8
function name:  (null)
number of ops:  27
compiled vars:  !0 = $data, !1 = $dom, !2 = $xpath, !3 = $lines_to_be_removed, !4 = $line
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%3Cdiv%3E%0A++++%3Cp%3EThese+line+shall+stay%3C%2Fp%3E%0A++++%3Cp+class%3D%22myclass%22%3ERemove+this+one%3C%2Fp%3E%0A++++%3Cp%3EBut+keep+this%3C%2Fp%3E%0A%3C%2Fdiv%3E'
   11     1        NEW                                              $6      'DOMDOcument'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !1, $6
   12     4        INIT_METHOD_CALL                                         !1, 'loadHTML'
          5        SEND_VAR_EX                                              !0
          6        DO_FCALL                                      0          
   14     7        NEW                                              $10     'DOMXPath'
          8        SEND_VAR_EX                                              !1
          9        DO_FCALL                                      0          
         10        ASSIGN                                                   !2, $10
   16    11        INIT_METHOD_CALL                                         !2, 'query'
         12        SEND_VAL_EX                                              '%2F%2F%2A%5B%40class%3D%27myclass%27%5D'
         13        DO_FCALL                                      0  $13     
         14        ASSIGN                                                   !3, $13
   18    15      > FE_RESET_R                                       $15     !3, ->22
         16    > > FE_FETCH_R                                               $15, !4, ->22
   19    17    >   FETCH_OBJ_R                                      ~16     !4, 'parentNode'
         18        INIT_METHOD_CALL                                         ~16, 'removeChild'
         19        SEND_VAR_EX                                              !4
         20        DO_FCALL                                      0          
   18    21      > JMP                                                      ->16
         22    >   FE_FREE                                                  $15
   23    23        INIT_METHOD_CALL                                         !1, 'saveHTML'
         24        DO_FCALL                                      0  $18     
         25        ECHO                                                     $18
   24    26      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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