3v4l.org

run code in 300+ PHP versions simultaneously
<?php function walkDOM($node) { if($node->nodeName=="pre" || $node->nodeName=="code") { return; } elseif($node->nodeName=="img") { $node->attributes->getNamedItem("src")->nodeValue=str_replace('desktop-img','mobile-img',$node->attributes->getNamedItem("src")->nodeValue); } elseif($node->hasChildNodes()) { foreach($node->childNodes as $child) { walkDOM($child); } } } function changeImagePath($html) { $dom=new DOMDocument; $dom->preserveWhiteSpace=true; $dom->loadHTML($html); $root=$dom->documentElement; walkDOM($root); $dom->formatOutput=false; return $dom->saveHTML($root); } echo changeImagePath(<<<HTML <div class="wrapper"> <img src="img/demo/desktop-img/sample1.jpg" width="200" height="200" alt="image"> <img src="img/demo/desktop-img/sample2.jpg" width="200" height="200" alt="image"> <pre> <img src="img/demo/desktop-img/sample1.jpg" width="200" height="200" alt="image"> <img src="img/demo/desktop-img/sample2.jpg" width="200" height="200" alt="image"> </pre> <code> <img src="img/demo/desktop-img/sample1.jpg" width="200" height="200" alt="image"> <img src="img/demo/desktop-img/sample2.jpg" width="200" height="200" alt="image"> </code> </div> HTML );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/mJkmb
function name:  (null)
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   30     0  E >   INIT_FCALL                                               'changeimagepath'
   31     1        SEND_VAL                                                 '%3Cdiv+class%3D%22wrapper%22%3E%0A%0A%3Cimg+src%3D%22img%2Fdemo%2Fdesktop-img%2Fsample1.jpg%22+width%3D%22200%22+height%3D%22200%22+alt%3D%22image%22%3E%0A%3Cimg+src%3D%22img%2Fdemo%2Fdesktop-img%2Fsample2.jpg%22+width%3D%22200%22+height%3D%22200%22+alt%3D%22image%22%3E%0A%0A%3Cpre%3E%0A%3Cimg+src%3D%22img%2Fdemo%2Fdesktop-img%2Fsample1.jpg%22+width%3D%22200%22+height%3D%22200%22+alt%3D%22image%22%3E%0A%3Cimg+src%3D%22img%2Fdemo%2Fdesktop-img%2Fsample2.jpg%22+width%3D%22200%22+height%3D%22200%22+alt%3D%22image%22%3E%0A%3C%2Fpre%3E%0A%0A%3Ccode%3E%0A%3Cimg+src%3D%22img%2Fdemo%2Fdesktop-img%2Fsample1.jpg%22+width%3D%22200%22+height%3D%22200%22+alt%3D%22image%22%3E%0A%3Cimg+src%3D%22img%2Fdemo%2Fdesktop-img%2Fsample2.jpg%22+width%3D%22200%22+height%3D%22200%22+alt%3D%22image%22%3E%0A%3C%2Fcode%3E%0A%0A%3C%2Fdiv%3E'
          2        DO_FCALL                                      0  $0      
          3        ECHO                                                     $0
   48     4      > RETURN                                                   1

Function walkdom:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 47) Position 1 = 4, Position 2 = 7
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 10
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
2 jumps found. (Code = 43) Position 1 = 13, Position 2 = 31
Branch analysis from position: 13
1 jumps found. (Code = 42) Position 1 = 42
Branch analysis from position: 42
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 31
2 jumps found. (Code = 43) Position 1 = 34, Position 2 = 42
Branch analysis from position: 34
2 jumps found. (Code = 77) Position 1 = 36, Position 2 = 41
Branch analysis from position: 36
2 jumps found. (Code = 78) Position 1 = 37, Position 2 = 41
Branch analysis from position: 37
1 jumps found. (Code = 42) Position 1 = 36
Branch analysis from position: 36
Branch analysis from position: 41
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 41
Branch analysis from position: 42
Branch analysis from position: 7
filename:       /in/mJkmb
function name:  walkDOM
number of ops:  43
compiled vars:  !0 = $node, !1 = $child
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    4     1        FETCH_OBJ_R                                      ~2      !0, 'nodeName'
          2        IS_EQUAL                                         ~3      ~2, 'pre'
          3      > JMPNZ_EX                                         ~3      ~3, ->7
          4    >   FETCH_OBJ_R                                      ~4      !0, 'nodeName'
          5        IS_EQUAL                                         ~5      ~4, 'code'
          6        BOOL                                             ~3      ~5
          7    > > JMPZ                                                     ~3, ->10
    6     8    > > RETURN                                                   null
          9*       JMP                                                      ->42
    8    10    >   FETCH_OBJ_R                                      ~6      !0, 'nodeName'
         11        IS_EQUAL                                                 ~6, 'img'
         12      > JMPZ                                                     ~7, ->31
   10    13    >   FETCH_OBJ_R                                      ~8      !0, 'attributes'
         14        INIT_METHOD_CALL                                         ~8, 'getNamedItem'
         15        SEND_VAL_EX                                              'src'
         16        DO_FCALL                                      0  $9      
         17        SEPARATE                                         $9      $9
         18        INIT_FCALL                                               'str_replace'
         19        SEND_VAL                                                 'desktop-img'
         20        SEND_VAL                                                 'mobile-img'
         21        FETCH_OBJ_R                                      ~11     !0, 'attributes'
         22        INIT_METHOD_CALL                                         ~11, 'getNamedItem'
         23        SEND_VAL_EX                                              'src'
         24        DO_FCALL                                      0  $12     
         25        FETCH_OBJ_R                                      ~13     $12, 'nodeValue'
         26        SEND_VAL                                                 ~13
         27        DO_ICALL                                         $14     
         28        ASSIGN_OBJ                                               $9, 'nodeValue'
         29        OP_DATA                                                  $14
         30      > JMP                                                      ->42
   12    31    >   INIT_METHOD_CALL                                         !0, 'hasChildNodes'
         32        DO_FCALL                                      0  $15     
         33      > JMPZ                                                     $15, ->42
   14    34    >   FETCH_OBJ_R                                      ~16     !0, 'childNodes'
         35      > FE_RESET_R                                       $17     ~16, ->41
         36    > > FE_FETCH_R                                               $17, !1, ->41
   16    37    >   INIT_FCALL_BY_NAME                                       'walkDOM'
         38        SEND_VAR_EX                                              !1
         39        DO_FCALL                                      0          
   14    40      > JMP                                                      ->36
         41    >   FE_FREE                                                  $17
   19    42    > > RETURN                                                   null

End of function walkdom

Function changeimagepath:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/mJkmb
function name:  changeImagePath
number of ops:  21
compiled vars:  !0 = $html, !1 = $dom, !2 = $root
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   20     0  E >   RECV                                             !0      
   22     1        NEW                                              $3      'DOMDocument'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !1, $3
   23     4        ASSIGN_OBJ                                               !1, 'preserveWhiteSpace'
          5        OP_DATA                                                  <true>
   24     6        INIT_METHOD_CALL                                         !1, 'loadHTML'
          7        SEND_VAR_EX                                              !0
          8        DO_FCALL                                      0          
   25     9        FETCH_OBJ_R                                      ~8      !1, 'documentElement'
         10        ASSIGN                                                   !2, ~8
   26    11        INIT_FCALL                                               'walkdom'
         12        SEND_VAR                                                 !2
         13        DO_FCALL                                      0          
   27    14        ASSIGN_OBJ                                               !1, 'formatOutput'
         15        OP_DATA                                                  <false>
   28    16        INIT_METHOD_CALL                                         !1, 'saveHTML'
         17        SEND_VAR_EX                                              !2
         18        DO_FCALL                                      0  $12     
         19      > RETURN                                                   $12
   29    20*     > RETURN                                                   null

End of function changeimagepath

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
174.34 ms | 1398 KiB | 17 Q