如何创建一个嵌套的XML递归函数 - PHP

Question

问候

是否有人有递归函数的一些经验？我试图将一个XML文件解析成对象（在PHP中）（稍后在drupal中使用它） 我写的代码在第一个“children”节点几乎总是相同之后（请参阅下面）。 只有2件事情的变化是从xpath的链接（什么不应该那么困难）和创建动态对象 - 变量（如果存在的话）。

第一个主题的代码（整个事情是一个疗程）

“$用品 - >的ident < - 众所周知，因为你是在foreach

$ resulty = $ xpaths-> xpath（“/ org.olat.course.Structure/rootNode/children/[ident = '$ item-> ident']/children/ [type ='st'or type ='sp'或输入= 'bc']“）;

foreach ($resulty as $itemy) { 

    $SubjectObject = new subject(); 

// isnt 100% correct but doesn't matter now 

    $SubjectObject->getSubjectFolders($FolderObject); 

    $SubjectObject->setSubjectId(isset($item->SubjectId) ? (string) $item->SubjectId: null); 
    $SubjectObject->setSubjectShortTitle(isset($item->SubjectName) ? (string) $item->SubjectName: null); 

    $ChapterObject->setSubject($SubjectObject); 
} 

---

现在 - 如果我想从从课件比这的对象时的主题将是

$ resulty = $ xpaths->的XPath（“/组织.olat.course.Structure/rootNode/children/[ident ='$ item-> ident']/children/ [type ='st'or type ='sp'or type ='bc']“）;

foreach ($resulty as $itemy) { 

    $SubjectObject = new subject(); 

    $SubjectObject->getSubjectFolders($FolderObject); 

    $SubjectObject->setSubjectId(isset($itemy->SubjectId) ? (string) $itemy->SubjectId: null); 
    $SubjectObject->setSubjectShortTitle(isset($itemy->SubjectName) ? (string) $itemy->SubjectName: null); 

     $resultz = $xpaths->xpath("/org.olat.course.Structure/rootNode/children/*[ident = '$item->ident']children/*[ident = '$itemy->ident']/children/*[type = 'st' or type = 'sp' or type = 'bc']"); 

      foreach ($resultz as $itemz) { 

       $SubSubjectObject = new subject(); 

       $SubSubjectObject->getSubjectFolders($FolderObject); 

       $SubSubjectObject->setSubjectId(isset($itemz->SubjectId) ? (string) $itemz->SubjectId: null); 
       $SubSubjectObject->setSubjectShortTitle(isset($itemz->SubjectName) ? (string) $itemz->SubjectName: null); 



          $resulta = $xpaths->xpath("/org.olat.course.Structure/rootNode/children/*[ident = '$item->ident']/children/*[ident = '$itemy->ident']/children/*[ident = '$itemz->ident']/children/*[type = 'st' or type = 'sp' or type = 'bc']"); 

           foreach ($resulta as $itema) { 

            $SubSubSubSubjectObject= new subject(); 

            $SubSubSubSubjectObject->getSubjectFolders($FolderObject); 

            $SubSubSubSubjectObject->setSubjectId(isset($itema->SubjectId) ? (string) $itema->SubjectId: null); 
            $SubSubSubSubjectObject->setSubjectShortTitle(isset($itema->SubjectName) ? (string) $itema->SubjectName: null); 


                (and so on) 


            $SubSubSubjectObject->setSubject($SubSubSubSubjectObject); 
           } 



       $SubjectObject->setSubject($SubSubjectObject); 

      } 


    $ChapterObject->setSubject($SubjectObject); 

}

这里是XML树（例如）

<Structure> 

    <rootnode> 

     <CursusName>History</CursusName> 
     <CursusId>100001</CursusId> 
     <children> 

      <childNode> 

       <SubjectName>World War 1</SubjectName> 
       <SubjectId>100002</SubjectId> 
       <children> 

        <childNode> 

         <SubjectName>World War 1.1</SubjectName> 
         <SubjectId>100016</SubjectId> 
         <children> 

          <childNode> 

           <SubjectName>World War 1.1.1</SubjectName> 
           <SubjectId>100032</SubjectId> 
           <children> 

            <childNode> 

             <SubjectName>World War 1.1.1.1</SubjectName> 
             <SubjectId>100065</SubjectId> 
             </children> 

            </childNode> 

           </children> 
           +<children></children> 

          </childNode> 

         </children> 
         +<children></children> 

        </childNode> 
        +<childNode></childNode> 

       </children> 
       +<children></children> 

      </childNode> 
      +<childNode></childNode> 
      +<childNode></childNode> 

     </children> 
     +<visibility></visibility> 
     +<accessibility></accessibility> 

    </rootnode> 
    <version>1</version> 

</Structure> 

SO

有人可以帮助眉？ 有人知道如何解决对象的问题吗？ 一种foreach/while循环创建对象？并将它们提取到他的父对象中？

遗憾的长期职位及代码，所有的行

亲切的问候

迪特

亲切的问候

Answer 1

function recurseResults($resulty) 
{ 
    foreach ($resulty as $itemy) 
    { 
     $SubjectObject = new subject(); 
     $SubjectObject->getSubjectFolders($FolderObject); 
     $SubjectObject->setSubjectId(isset($itemy->SubjectId) ? (string) $itemy->SubjectId: null); 
     $SubjectObject->setSubjectShortTitle(isset($itemy->SubjectName) ? (string) $itemy->SubjectName: null); 
     $resultz = $xpaths->xpath("/org.olat.course.Structure/rootNode/children/*[ident = '$item->ident']children/*[ident = '$itemy->ident']/children/*[type = 'st' or type = 'sp' or type = 'bc']"); 
     // __save my new subject somewhere__ 
     recurseResults($resultz); 
    } 
}