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在php中将字符串转换为domelement

[英]convert string to domelement in php

Is there any way to convert string to a DOMElement in php (not a DOMDocument) such that I can import it into a DOMDocumment? 有没有办法将字符串转换为php(不是DOMDocument)中的DOMElement,以便我可以将其导入DOMDocumment? For example have the HTML string: 例如,有HTML字符串:

<div><div>Add Example</div><div>View more examples</div></div>

I would like to have it as though I used DOMDocument::createElement to create it. 我想让它好像我使用DOMDocument :: createElement来创建它。 Then I would like to append it to a child of a DOMDocumment. 然后我想将它附加到DOMDocumment的子项。

Unless you want to write your own HTML parser you will need to use a DOMDocument to create DOMElements. 除非您想编写自己的HTML解析器,否则您需要使用DOMDocument来创建DOMElements。

class MyApp {
   static function createElementFromHTML($doc,$str) {
       $d = new DOMDocument();
       $d->loadHTML($str);
       return $doc->importNode($d->documentElement,true);
   }
}

The problem with this method is shown in the following string 此方法的问题显示在以下字符串中

$str = "<div>1</div><div>2</div>";

This obviously doesn't have a single parent. 这显然没有单亲。 Instead you should be ready to handle an array of DOMNode's 相反,你应该准备好处理一组DOMNode

class MyApp {
   static function createNodesFromHTML($doc,$str) {
       $nodes = array();
       $d = new DOMDocument();
       $d->loadHTML("<html>{$str}</html>");
       $child = $d->documentElement->firstChild;
       while($child) {
           $nodes[] = $doc->importNode($child,true);
           $child = $child->nextSibling;
       }
       return $nodes;
   }
}

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