How can I remove DOM element tags but leave their contents?

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深忆病人 2021-01-19 14:20

I have PHP code which removes all nodes that have at least one attribute. Here is my code:


    These


      
      
        
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                   野的像风
                                             
                
                
                (楼主)
            
              
              
                2021-01-19 15:05
              

            
            
                        
This will remove all tags that have class and style attributes, so it's not a bullet proof:


    These line shall stay
    Remove this one
    But keep this
    and this

DATA;

$dom = new DOMDOcument();
$dom->loadHTML($data, LIBXML_HTML_NOIMPLIED);
$dom->removeChild($dom->doctype);

$xpath = new DOMXPath($dom);

$lines_to_be_removed = $xpath->query("//*[count(@class)>0 or count(@style)>0]");

foreach ($lines_to_be_removed as $line) {
    $line->parentNode->removeChild($line);
}

// just to check
echo $dom->saveHTML();
?>


Note this line:

 $lines_to_be_removed = $xpath->query("//*[count(@class)>0] or count(@style)>0]");

    
             
                                                        
            
            
              
                
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