DOMê÷?¨ò?á???μμμ????-?á11￡?ò??°??????·??êoí2ù×÷?aD???μμμ?·?·¨?￡ê1ó?DOM￡??a·￠è??±?éò?′′?¨XML?òHTML??μμ￡?2ù×÷?ü??μ??á1?￡????ó?￠DT??oíé?3y??μμ ?a???°?úèY?￡?éò?′óè?o?±à3ìó???·??êDOM￡?±???ê1ó?PHP 5 DOMà??1￡??üê?PHPo?D?μ?ò?2?·?￡?òò′?3yá?PHPía￡?2?Dèòa°2×°???üèí?t?￡

DOMê÷?úμ?×??-XML?ü??1?·?￡?è?￡o

1?￠Document?úμ? -- ±íê?DOMDocument?ó?ú

2?￠Element?úμ? -- ±íê?DOMElement?ó?ú

3?￠Attribute?úμ? -- ±íê?DOMAttr?ó?ú

4?￠Comment?úμ? -- ±íê?DOMComment?ó?ú

5?￠Text?úμ? -- ±íê?DOMText?ó?ú

ìáè??a??

?aò?D??ú?ééüè?o?′óDOMê÷?Dìáè??a??oí?μ￡?±???ê1ó?Book.xml×÷?aày×ó??DD?μ?÷￡????úèYè???μ￥1?ùê??￡

??μ￥1 Book.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?> 
<book> 
<!--XML Processing [part I] --> 
 <name>XML Processing I</name> 
  <author>John Smith Jr.</author> 
  <publisher>HisOwnTM</publisher> 
  <ISBN>111-222-333-4441</ISBN> 
  <contents> 
    <chapter_I> 
      <title>What is XML about ?</title> 
      <content>XML (Extensible Markup Language) is a ...</content> 
    </chapter_I> 
    <chapter_II> 
      <title>SAX</title> 
      <content>SAX is a simple API for ...</content> 
   </chapter_II> 
    <chapter_III> 
      <title>StAX</title> 
      <content>Much powerful and flexible, StAX, is very...</content> 
    </chapter_III> 
    <chapter_IV> 
      <title>DOM 
        <subtitle>DOM concept  
          <continut>Starting to use DOM...</continut> 
        </subtitle> 
        <subchapter_IV_I> 
         <title>First DOM application...</title> 
          <content>Here it is your first DOM application...</content> 
        </subchapter_IV_I>  
      </title>              
    </chapter_IV>           
    <end>The end...</end>           
  </contents> 
<!-- See you in XML Processing [part II] --> 
</book> 

?è????±???ê1ó?μ?PHP′ú???1??°ü￡?http://assets.devx.com/sourcecode/41975_oa_mainsource.zip￡???Book.xmloí?1 ??°ü?a?1oó·??úí?ò??????????￡

μúò???ê?àyó|ó?3ìDòê1ó?Book.xml??μμ￡?ìáè?3?1?áaμ?ê÷￡?è?oóê1ó?DOMElement?ó?úμ?getElementsByTagName·?·¨??ê?μúò???×ó?úμ?êμày￡o

DOMNodeList DOMElement::getElementsByTagName(string $name)￡o?a??·?·¨·μ???ùóD$name2?êy???¨μ?±ê????μ?×ó?a???￡????μ?ày×ó2é?ò<book>?ù?úμ? ￡?è?oó2é?ò?üμ?×ó?úμ? <author>￡?<publisher>oí <name>?a??￡?????????×ó?úμ?μ?μúò???￡?×?oó′òó??aD??úμ?μ??μ￡o

<?php 
 // ′′?¨ò?????μμêμày  
  $doc = new DOMDocument();  
  //??è?Book.xml???t  
  $doc->load( 'Book.xml' );  
  //ê1ó?book±ê???????÷?ùóD?a??  
  $books = $doc->getElementsByTagName( "book" );  
  //ê1ó?author±ê???????÷?ùóD?a??  
  $authors = $doc->getElementsByTagName( "author" );  
  //·μ??μúò???±ê?????aauthorμ??a??  
  $author = $authors->item(0)->nodeValue;  
  //ò?publisher±ê???????÷?ùóD?a?? 
  $publishers = $doc->getElementsByTagName( "publisher" );  
  //·μ??μúò????òμ?μ?±ê?????apublisherμ??a??  
   $publisher = $publishers->item(0)->nodeValue;  
  //???÷±ê?????anameμ??ùóD?a?? 
  $titles = $doc->getElementsByTagName( "name" );  
  //·μ??±ê?????anameμ?μúò????òμ?μ??a??  
  $title = $titles->item(0)->nodeValue;  
  //′òó??òμ?μ??μ  
  echo "$title - $author - $publisher \n";  
 ?> 

×?oóò?DDê?′òó?μúò???±êìa￡?μúò???×÷??￡?μúò???3?°?éì￡?ê1ó?á?×?·?·???￡?ê?3?￡o

XML Processing I - John Smith Jr. - HisOwnTM

μY1é?ˉààDOMê÷

òò?aXML??μμ?á11?Dò???±ê???éò?°üà¨áíò???±ê??￡¨·??§ê÷￡?￡?ê￡???íê?ò?×ó?úμ?￡?òò′????éò??ˉààíê??μ?ê÷?ò′óè?o??úμ??aê?μY1é?ˉàà×óê÷ ?￡????μ?ày×óê?′óè?o??aê??úμ?￡¨$node￡??ˉàà????μ?XML×óê÷￡?2￠áD3??úμ?μ???×?oí?μ?￡

function getNodesInfo($node)  
{  
   if ($node->hasChildNodes())  
   {  
      $subNodes = $node->childNodes; 
      foreach ($subNodes as $subNode)  
      { 
         if (($subNode->nodeType != 3) ||   
            (($subNode->nodeType == 3) &&  
            (strlen(trim($subNode->wholeText))>=1)))     
         {  
            echo "Node name: ".$subNode->nodeName."\n";  
            echo "Node value: ".$subNode->nodeValue."\n";  
         }  
         getNodesInfo($subNode);           
      }  
   }
        
}    

é???μ?ày×óê1ó?????μ?ì??tè￥3yá??ùóD????±??úμ?￡?è?ê?3??′?eà′?ü?é??￡o

if (($subNode->nodeType != 3) ||   
   (($subNode->nodeType == 3) &&  
   (strlen(trim($subNode->wholeText))>=1)))    

?°??μ?′ú???ì2é?úμ?ê?·?±?′|àí￡?í??ù￡????éò?éè???¤?¨ò?μ?preserveWhiteSpaceê?D?￡??üò?3yè?óàμ???°×￡???è??μê?TRUE?￡

?aá?2aê??a??1|?ü￡??????a??ày×ó′?μYBook.xml??μμμ??ù?úμ???μY1éoˉêygetNodesInfo￡?è?oó′òó?3?????DOMê÷μ?±ê??oí?μ￡o

<?php 
//′′?¨ò?????μμêμày   
$doc = new DOMDocument();  
//??è?Book.xml???t  
$doc->load( 'Book.xml' );   
//éè?????óê÷?ù   
$root = $dom->firstChild;  
// μY1éoˉêyáD3?×óê÷μ??ùóD?úμ?  
function getNodesInfo($node)  
{  
   if ($node->hasChildNodes())  
   {  
      $subNodes = $node->childNodes;  
     foreach ($subNodes as $subNode)  
      {  
         if (($subNode->nodeType != 3) ||   
            (($subNode->nodeType == 3)    
            &&(strlen(trim($subNode->wholeText))>=1)))     
         {  
         echo "Node name: ".$subNode->nodeName."\n";  
         echo "Node value: ".$subNode->nodeValue."\n";  
     }  
      getNodesInfo($subNode);           
      }  
   }        
}     
//μ÷ó?getNodesInfooˉêy  
getNodesInfo($root);  
?> 

 í?1??ê?á?ê?3?μ?D?2?·??úèY

í?- 1??μμ?úèY￡o?a??í???ê?á?í¨1ygetNodesInfoμY1éoˉêy??DDBook.xmlμ?2?·?ê?3??úèY

#p#

???óD??úμ?

DOMNode?ó?ú°üà¨?à??′′?¨D??úμ?oí?úDOMê÷?D2?è??úμ?μ?·?·¨￡?è?1?òa′′?¨ò???D??úμ?￡??éò?ê1ó?createElement?òcreateTextNode·?·¨￡?è?oó ￡??aá????óò???D??úμ?μ?DOMê÷é?￡??éò?μ÷ó?appendChild?òinsertBefore·?·¨￡?appendChild·?·¨???óò???D?μ?×ó?úμ?μ?ì??¨?úμ?μ?×ó?úμ?áD±íμ?oó??￡??? insertBefore·?·¨ê??úì??¨?úμ?μ??°??2?è?ò????úμ??￡

????ê??aD?·?·¨μ??-Dí￡o

1?￠DOMElement createElement(string $name [, string $value ]) ￡o?a??·?·¨′′?¨á?ò???DOMElementààμ?êμày￡?$name2?êy±íê?D??a??μ?±ê????￡?$value2?êy ±íê??a??μ??μ￡???ò2?éò?é?oóê1ó?DOMElement->nodeValueê?D????μ?￡

2?￠DOMText createTextNode(string $content)￡o?a??·?·¨′′?¨á?ò???DOMTextààμ?êμày￡?$content2?êy±íê?D?μ???±??úμ?μ???±??úèY?￡

3?￠DOMNode DOMNode::appendChild(DOMNode $newnode)￡o?a??oˉêyà??1á???óD×ó?úμ????2$newnode2?êy￡??ò′′?¨ò???D?μ?°üà¨???¨?úμ?μ?×ó?úμ?áD±í?￡

4?￠DOMNode DOMNode::insertBefore(DOMNode $newnode [,DOMNode $refnode])￡o?a??·?·¨?ú$refnode?úμ??°2?è?$newnode2?êy￡?è?1?$refnode?úμ??aê§￡?D?μ? ?úμ??íìí?óμ??úμ?μ?×ó?úμ?áD±í?°?￡

????μ?ày×ó′′?¨á?ò???<bibliography>?úμ?￡?2￠????×·?óμ??úμ?μ????2￡o

//′′?¨ò???D??a??   
$newElement = $dom->createElement('bibliography','Martin Didier, Professional XML');  
//ê1ó?appendChildoˉêy????×·?óμ??ù?úμ?  
//μ÷ó?appendChildoˉêy  
appendNewChild($root,$newElement);  
//?a??oˉêy×·?óá?ò???D?μ?×ó?úμ?  
function appendNewChild($currentNode, $node)  
{  
   $currentNode->appendChild($node);  
} 

è?1???í¨1ygetNodeInfo()oˉêy??DDμ?3??á1?￡??????á?′μ?è?í?2?ùê?μ?ê?3??￡

í?- 2 ×·?óμ??úμ?￡o?a??í???ê?á?D??óμ?<bibliography>?úμ?oí?üμ??úèY

????μ?ày×óê??ú<publisher>?úμ????óò???<foreword>×ó?úμ?￡o

//′′?¨ò???D?μ?<foreword>?a??  
$newElement = $dom->createElement('foreword',  
   'What I love about this book is that it '.  
   'grew out of just such a process, '.  
   'and shows it on every page.');  
//éè??òyó??úμ?  
$allContents = $dom->getElementsByTagName('publisher');  
$contents = $allContents->item(0);  
//μ÷ó?insertNewChildoˉêy   
insertNewChild($contents,$newElement);  
//?a??oˉêy2?è?ò???D?μ?×ó?úμ?×÷?a $currentNodeμ?μúò???×ó?úμ?  
function insertNewChild($currentNode, $node)  
{  
   $currentNode->insertBefore(  
      $node, $currentNode->firstChild);     
} 

í¨1ygetNodesInfo??DDDT??oóμ???μμ￡???ê?D?μ??úμ?￡?è?í?3?ùê??￡

í?- 3 2?è??úμ?￡o?a??í?????ê?á??ú<publisher>?úμ??°2?è?á?<foreward>×ó?úμ?

?úμ?????

????ò????úμ?òa??×?′′?¨ò???oíμ±?°?úμ?ò??￡ò??ùμ??úμ?￡??????úμ?ê±ê1ó?cloneNode·?·¨?￡

DOMNode DOMNode::cloneNode([ bool $deep])￡o′′?¨μ±?°μ?????￡?$deep2?êy???¨ê?·?òa??±′μ±?°?úμ?μ?×ó?úμ?￡?????è??μê?false?￡????μ?ê?ày′ú????ê????? <author>?a??￡?2￠×÷?a?′<author>?a??μ?×ó?úμ?￡?í?4??ê?á?ê?3??úèY￡o

//éè??òyó??úμ?  
$author = $root->getElementsByTagName('author')->item(0);  
//μ÷ó?cloningNodeoˉêy  
cloningNode($author);   
//?a??oˉêy????$currentNode  
function cloningNode($currentNode)  
   {  
      $clonenode = $currentNode -> cloneNode(true);  
      $newnode = $currentNode->appendChild($clonenode);     
   } 

í?- 4 ?????úμ?￡o????<author>×ó?úμ?2￠????·??ú?′<author>?úμ???￡??′?úμ?μ???±??μ±?3éá?·Yá?￡?òò?a?ì?÷?úμ?μ???±??μê±ò2?ì?÷á???×ó?úμ?μ? ?μ

#p#

ò?3y×ó?úμ?

ê1ó?removeChild·?·¨′óDOMê÷?Dò?3y×ó?úμ??￡

DOMNode DOMNode::removeChild(DOMNode $oldnode)￡o?a??oˉêyò?3yò???×ó?úμ?￡?$oldnode2?êy??3?òaò?3yμ?×ó?úμ??￡????μ?ê?ày′ú??′óBook.xml??μμ?Dò?3y×ó ?úμ?￡?′óí?5?D??ê?μ?ê?3??úèY?éò??′μ?bibliography?úμ???ê§á??￡

í?- 5 ò?3y?úμ?￡oò?3y×?oóò???×ó?úμ?<bibliography>oó￡???D?áD3?á??úμ?μ???3??μ￡???ê??úμ?è·êμ±?ò?3yá?

ì????úμ?

?aá?ó?ò???D??úμ?ì???ò?óDμ??úμ?￡?ê1ó?replaceChild·?·¨?￡

DOMNode DOMNode::replaceChild(DOMNode $newnode, DOMNode $oldnode)￡o?a??oˉêyê1ó?$newnode×ó?úμ?ì???$oldnode?úμ??￡

àyè?￡??ùéè????ó?D?μ?code×ó?úμ?ì???ISBN×ó?úμ?￡o

//??è?ISBN?úμ?  
$element = $dom->getElementsByTagName('ISBN')->item(0);   
//′′?¨D?μ?<code>?a??   
$code = $dom->createElement('code', '909090');  
//μ÷ó?replacingNodeoˉêy   
replacingNode($code,$element);  
//?a??oˉêyê1ó?$nodeì???$currentNode   
function replacingNode($currentNode, $node)  
{  
   $node->parentNode->replaceChild($currentNode, $node);     
} 

í?6?D??ê?μ?ê?3??úèY±í?÷?úμ?±?ì???á?

í?- 6 ì????úμ?￡o?aà???ê?μ?ê?ó?D?μ?<code>?úμ?ì???<ISBN>?úμ?oóμ???μμ?úèY

μ?è??úμ?

ê1ó?importNode·?·¨′óáíò???ê÷??±′ò????úμ?μ?μ±?°μ?ê÷?￡

DOMNode DOMDocument::importNode(DOMNode $importedNode [,bool $deep])￡o?a??·?·¨′óáíò???XML??μμμ?è?ò????úμ?￡?è?oó2?è?μ±?°??μμμ?DOMê÷?D￡? $importedNode2?êy??3?á?òaμ?è?μ??úμ?￡?μ?è?μ??úμ?±íê??-ê??úμ?μ?ò?·Y??±′￡?òò′?μ?è?2ù×÷2??áDT??ía2?ê÷￡?$deep2?êy????ê?·?μ?è?±?μ?è??úμ?μ?é??è￡??μ?a TRUEê±￡?μ?è?íê??μ??úμ?×óê÷￡??aFALSEê±￡???μ?è??úμ?±?éí?￡

????μ?ê?ày′óBook_continue.xml???tμ?è?<continue>?úμ?μ?Book.xml￡?????ê?Book_continue.xml??μμμ??úèY￡o

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?> 
<!--chapter V--> 
<continue> 
  <chapter_V> 
   <title>XPath</title> 
   <content>XPath is language for...</content> 
  </chapter_V> 
  <![CDATA[  
     This chaper is a bonus to...  
     ]]> 
  <printing cap_I="click_here_for_chapter_I"   
    cap_II="click_here_for_chapter_II"     
    cap_III="click_here_for_chapter_III" 
    cap_IV="click_here_for_chapter_IV"   
    cap_V="click_here_for_chapter_V" /> 
</continue> 
????ê?μ?è?<continue>?úμ?μ?′ú??￡o  
<?php 
$olddoc = new DOMDocument;  
$olddoc->load("Book_continue.xml");  
//?ò??μ?è?μ?ò???D???μμμ??úμ?  
$node = $olddoc->getElementsByTagName("continue")->item(0);  
$newnewdoc = new DOMDocument;  
$newdoc->formatOutput = true;  
$newdoc->load("Book.xml");  
//μ?è??úμ??°???ùóD×ó?úμ?μ???μμ  
$node = $newdoc->importNode($node, true);  
//è?oó×·?óμ??ù?úμ?  
$newdoc->documentElement->appendChild($node);  
echo "\nThe 'new document' after copying the nodes into it:\n";  
$root = $newdoc->firstChild;  
function getNodesInfo($node)  
{  
   if ($node->hasChildNodes())  
   {  
      $subNodes = $node->childNodes;  
      foreach ($subNodes as $subNode)  
      {  
         if (($subNode->nodeType != 3) ||   
            (($subNode->nodeType ==3) &&  
            (strlen(trim($subNode->wholeText))>=1)))     
         {  
         echo "Node name: ".$subNode->nodeName."\n";  
         echo "Node value: ".$subNode->nodeValue."\n";  
      }  
      getNodesInfo($subNode);           
      }  
   }        
}  
getNodesInfo($root);     
?> 

í?7??ê??°??′ú??μ?ê?3?

í?- 7 μ?è??úμ?￡o?aà???ê?á?′óBook_continue.xmlμ?è??úμ?2￠×·?óμ?Book.xmloóμ??ù×ó

?ì2é?úμ?μ?μèí?D?

?ì2éá????úμ?ê?·??àí?ê1ó?isSameNode·?·¨?￡

bool DOMNode::isSameNode(DOMNode $node)￡oμ±?úμ?ê??àμèμ?ê±oò￡??a??oˉêy·μ??ò???2????μTRUE￡?·??ò·μ??FALSE￡?$node2?êy±íê???òaoíμ±?°?úμ???DD±è?? μ??úμ??￡

×￠òa±è??2?ê??ùóú?úμ?μ??úèY??DDμ?￡o

//?ì2éá????úμ?ê?·??àí?  
$author1 = $root->getElementsByTagName('autor')->item(0);  
$author2 = $root->getElementsByTagName('autor')->item(1);  
//μ÷ó?verifyNodesoˉêy  
verifyNodes($author1,$author2);  
function verifyNodes($currentNode, $node)  
{  
   if (($currentNode->isSameNode($node))==true)  
   {  
      echo "These two nodes are the same";  
   }     
} 

′′?¨D?μ?ê÷

PHP 5 DOMà??1?éò?è???′óá??aê?11?¨DOMê÷￡?????μ?ê?ày′′?¨á?ò???è?D?μ?XML??μμ￡?ê1ó?á?á???D?oˉêy′′?¨×￠êíoíCDATA?úμ??￡

1?￠DOMComment DOMDocument::createComment(string $data)￡o′′?¨ò???D?μ?×￠êí?úμ?￡?$data2?êy±íê??úμ?μ??úèY?￡

2?￠DOMCDATASection DOMDocument::createCDATASection(string $data)￡o′′?¨ò???D?μ?CDATA?úμ?￡?$data2?êy±íê??úμ?μ??úèY?￡

<?php   
  //′′?¨ò?????μμêμày   
  $document = new DOMDocument();  
  //ê1ó???????ê??ˉê?3?  
  $document->formatOutput = true;  
  //′′?¨ò???×￠êí  
  $comment = $document->createComment('Beautiful flowers!!!');  
  $document->appendChild( $comment );   
  //′′?¨<flowers>?ù?a??   
  $root = $document->createElement( 'flowers' );  
  $document->appendChild( $root );  
  //′′?¨<tulips>×ó?úμ?  
  $tulips = $document->createElement( 'tulips' );  
  //′′?¨<tulips>?a??μ?μúò???×ó?úμ?<bulbs>￡?2￠éè????ê?D?  
   $bulbs_1 = $document->createElement( 'bulbs' );     
  $bulbs_1->setAttribute('price','? 7.65');  
  $bulbs_1->appendChild($document->createTextNode( 'Parrot'));  
  $tulips->appendChild( $bulbs_1 );  
  //′′?¨<tulips>?a??μ?μú?t??×ó?úμ?<bulbs>￡?2￠éè????ê?D?  
  $bulbs_2 = $document->createElement( 'bulbs' );      
  $bulbs_2->setAttribute('color','magenta');  
  $bulbs_2->appendChild($document->createTextNode( 'Lily flowering' ));  
  $tulips->appendChild( $bulbs_2 );  
  //×·?ó<tulips>?úμ?μ??ù?úμ?oó  
  $root->appendChild( $tulips );  
  //′′?¨CDATAD??ú  
  $cdata = $document->createCDATASection(  
    '<gladiolus><species>Sword Lily</species>'.  
    '<species>Starface</species></gladiolus>');  
  $document->appendChild( $cdata );   
  //±￡′????óê÷μ?Flowers.xml   
  echo $document->saveXML();  
  $document->save('Flowers.xml');  
?> 
D?μ?Flower.xml??μμ?úèYè???￡o  
<?xml version="1.0" encoding="ISO-8859-1"?> 
<!--Beautiful flowers!!!--> 
<flowers> 
  <tulips> 
    <bulbs price="? 7.65">Parrot</bulbs> 
    <bulbs color="magenta">Lily flowering</bulbs> 
  </tulips> 
</flowers> 
<![CDATA
[<gladiolus>  
    <species>Sword Lily</species>  
    <species>Starface</species>  
  </gladiolus>  
]]> 

??μ￥2?Dμ?′ú??′′?¨á?ò??????óê÷￡?2￠????±￡′??aFlowers.xml?￡

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±????òμ￥?ééüá?PHP 5 DOMà??1￡?2￠?ééüè?o?ê1ó??ü2ù×÷XML￡¨?òHTML￡???μμ￡?ò??°è?o?′óá?′′?¨ò???DOMê÷?￡

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