我有一個帶有常見問題解答頁面的基于 php 的動態網站。我想將微資料自動注入文本以用于 SEO 目的。我已經撰寫了獲取 html 并將微資料自動注入 html 的代碼，并輸出帶有微資料的 html，但不知何故，沒有得到預期的結果。
我試過下面的php代碼：
<?php
$faq = "
<h3>What does the story's title mean?</h3>
<p>The beating of a heart which causes the narrator to go insane that he confesses to his crimes. So the title means he's telling (Tell) the story of the old man's beating heart (Tale Heart) that drove him insane.</p>
<h3>The narrator claims he is not mad. What evidence do we have that he is?</h3>
<p>The narrator's desire to eradicate the man's eye motivates his murder, but the narrator does not acknowledge that this act will end the man's life. By dismembering his victim, the narrator further deprives the old man of his humanity.</p>";
$dom = new DOMDocument();
$dom->loadHTML($faq);
$title = $dom->getElementsByTagName('h3');
$paras = $dom->getElementsByTagName('p');
foreach($title as $h){
$h->setAttribute('class', 'faqy');
$h->setAttribute('itemprop', 'name');
}
foreach($paras as $p){
$acceptedAnswer = $dom->createElement('div');
$acceptedAnswer->setAttribute('itemscope','');
$acceptedAnswer->setAttribute('itemprop','acceptedAnswer');
$acceptedAnswer->setAttribute('itemtype','https://schema.org/Answer');
foreach ($p->childNodes as $child) {
$p->removeChild($child);
$acceptedAnswer->appendChild($child);
}
$p->appendChild($acceptedAnswer);
$p->setAttribute('class', 'faqp');
$p->setAttribute('itemprop', 'text');
$p->setAttribute('style', 'display: none;');
}
$html=$dom->saveHTML();
function wrapcallback( $buffer ){
global $use_output_buffer;
$delimiter='#';
$tags=array('h1','h2','h3','h4','h5','h6');
$query=implode('|', explode( $delimiter, sprintf( '//%s', implode( sprintf( '%s//', $delimiter ), $tags ) ) ) );
$keepers=array();
$parents=array();
libxml_use_internal_errors( true );
$dom=new DOMDocument;
$dom->validateOnParse=false;
$dom->recover=true;
$dom->strictErrorChecking=false;
$dom->preserveWhiteSpace=true;
$dom->loadHTML( $buffer );
$errors = libxml_get_errors();
libxml_clear_errors();
$xp=new DOMXPath( $dom );
$col=$xp->query( $query );
if( $col->length > 0 ){
foreach( $col as $node ){
$parents[]=$node->parentNode;
$nodes=array( $node );
while( $node = $node->nextSibling ){
if( in_array( $node->nodeName, $tags ) )break;
if( $node->nodeType==XML_ELEMENT_NODE )$nodes[]=$node;
}
$keepers[]=$nodes;
}
}
foreach( $keepers as $index => $obj ){
$mainEntity=$dom->createElement('li');
$mainEntity->setAttribute('class', 'faqq');
$mainEntity->setAttribute('itemscope', '');
$mainEntity->setAttribute('itemprop', 'mainEntity');
$mainEntity->setAttribute('itemtype', 'https://schema.org/Question');
$parents[ $index ]->appendChild( $mainEntity );
foreach( $obj as $child )$mainEntity->appendChild( $child );
}
$keepers = $parents = $xp = $mainEntity = null;
echo $dom->saveHTML();
};
$wraptext=$html;
?>
<div class="dfaq cfix" itemscope itemtype="https://schema.org/FAQPage">
<h2 class="faqt">FAQs</h2>
<ul class="faqs">
<?php wrapcallback($wraptext); ?>
</ul>
</div><!-- /.dfaq -->
上述php的html輸出為
<div class="dfaq cfix" itemscope="" itemtype="https://schema.org/FAQPage">
<h2 class="faqt">FAQs</h2>
<ul class="faqs">
<li class="faqq" itemscope="" itemprop="mainEntity" itemtype="https://schema.org/Question">
<h3 class="faqy" itemprop="name">What does the story's title mean?</h3>
<p class="faqp" itemprop="text" style="display: none;"></p>
<div itemscope="" itemprop="acceptedAnswer" itemtype="https://schema.org/Answer">
The beating of a heart which causes the narrator to go insane that he confesses to his crimes. So the title means he's telling (Tell) the story of the old man's beating heart (Tale Heart) that drove him insane.
</div>
</li>
<li class="faqq" itemscope="" itemprop="mainEntity" itemtype="https://schema.org/Question">
<h3 class="faqy" itemprop="name">The narrator claims he is not mad. What evidence do we have that he is?</h3>
<p class="faqp" itemprop="text" style="display: none;"></p>
<div itemscope="" itemprop="acceptedAnswer" itemtype="https://schema.org/Answer">
The narrator's desire to eradicate the man's eye motivates his murder, but the narrator does not acknowledge that this act will end the man's life. By dismembering his victim, the narrator further deprives the old man of his
humanity.
</div>
</li>
</ul>
</div>
預期的 html 輸出/我需要這個 html 輸出：
<div class="dfaq cfix" itemscope="" itemtype="https://schema.org/FAQPage">
<h2 class="faqt">FAQs</h2>
<ul class="faqs">
<li class="faqq" itemscope="" itemprop="mainEntity" itemtype="https://schema.org/Question">
<h3 class="faqy" itemprop="name">What does the story's title mean?</h3>
<div itemscope="" itemprop="acceptedAnswer" itemtype="https://schema.org/Answer">
<p class="faqp" itemprop="text" style="display: none;">The beating of a heart which causes the narrator to go insane that he confesses to his crimes. So the title means he's telling (Tell) the story of the old man's beating heart (Tale Heart) that drove him insane.</p>
</div>
</li>
<li class="faqq" itemscope="" itemprop="mainEntity" itemtype="https://schema.org/Question">
<h3 class="faqy" itemprop="name">The narrator claims he is not mad. What evidence do we have that he is?</h3>
<p class="faqp" itemprop="text" style="display: none;"></p>
<div itemscope="" itemprop="acceptedAnswer" itemtype="https://schema.org/Answer">
<p class="faqp" itemprop="text" style="display: none;">The narrator's desire to eradicate the man's eye motivates his murder, but the narrator does not acknowledge that this act will end the man's life. By dismembering his victim, the narrator further deprives the old man of his humanity.</p>
</div>
</li>
</ul>
</div>
uj5u.com熱心網友回復：
在元素之前創建一個 div 。當您重新附加一個節點時，它將被移動。
$html = '<p>text</p>';
$doc = new DOMDocument();
$doc->loadHTML($html);
$div = $doc->createElement('div');
$div->setAttribute('class', 'wrapper');
// Get the element
$p = $doc->getElementsByTagName('p')->item(0);
// Insert the new one before
$divNode = $p->parentNode->insertBefore($div, $p);
// Move the p into div
$divNode->appendChild($p);
echo $doc->saveHTML();
輸出
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html><body><div class="wrapper"><p>text</p></div></body></html>
轉載請註明出處，本文鏈接：https://www.uj5u.com/net/531960.html
標籤：phpdom附子微数据