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Wrap DOM element in another DOM element in PHP

I initially asked a question on these lines using Regex, but was recommended to use the PHP DOM library ... instead, which is superior, but I'm still stuck.

Basically, I want to wrap the content <a>in <span>if it is not finished in yet <span>.

<?php
$input = <<<EOT
<html><head></head>
<body bgcolor="#393a36">
    <a href="#"><span style="color:#ffffff;">Link 1</span></a>
    <a href="#">Link 2</a>
    <a href="#"><img src="mypic.gif" />Image Link</a>
    <a href="#"><u>Underlined Link</u></a>
</body>
</html>
EOT;


$doc = new DOMDocument();
$doc->loadHTML($input);
$tags = $doc->getElementsByTagName('a');
foreach ($tags as $tag) {
    $spancount = $tag->getElementsByTagName("span")->length;
    if($spancount == 0){
        $content = nodeContent($tag);
        $element = $doc->createElement('span');
        $element->setAttribute('style','color:#ffffff;');
        $frag = $doc->createDocumentFragment();
        $frag->appendXML($content);
        $element->appendChild($frag);   
        $tag->nodeValue = ""; //clear node
        $tag->appendChild($element);
    }
}
echo $doc->saveHTML();

function nodeContent($n, $outer=false) { 
    $d = new DOMDocument('1.0'); 
    $d->formatOutput = true;
    $b = $d->importNode($n->cloneNode(true),true); 
    $d->appendChild($b);
    $h = $d->saveHTML(); 
    // remove outter tags 
    if (!$outer) $h = substr($h,strpos($h,'>')+1,-(strlen($n->nodeName)+4)); 
    return $h; 
}

It provides this conclusion:

PHP : DOMDocumentFragment:: appendXML(): Entity: 1: : img line 1 in/private/var/folders/78/78vHGigZHcuFeXB1KKJSb ++++ TI/-Tmp-/untitled_3xd..php 24
PHP : DOMDocumentFragment:: appendXML(): /private/var/folders/ 78/78vHGigZHcuFeXB1KKJSb++++TI/-Tmp-/untitled_3xd..php 24 PHP : DOMDocumentFragment:: appendXML(): ^ /private/var/folders/ 78/78vHGigZHcuFeXB1KKJSb++++TI/-Tmp-/untitled_3xd..php 24 PHP : DOMNode:: appendChild(): /private/var/folders/ 78/HVGGZZHcuFeXB1KKJSb++++TI/-Tmp-/untitled_3xd..php 25

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>  
<head></head>  
<body bgcolor="#393a36">  
    <a href="#"><span style="color:#ffffff;">Link 1</span></a>  
    <a href="#"><span style="color:#ffffff;">Link 2</span></a>  
    <a href="#"><span style="color:#ffffff;"></span></a>  
    <a href="#"><span style="color:#ffffff;"><u>Underlined Link</u></span></a>  
</body>  
</html>

, , , , , , img ( ) a href.

. , .

. , , img, - . ?

$doc = new DOMDocument();
$doc->loadHTML($input);
$tags = $doc->getElementsByTagName('a');
foreach ($tags as $tag) {
    $spancount = $tag->getElementsByTagName("span")->length;
    if($spancount == 0){
    $element = $doc->createElement('span');
    $element->setAttribute('style','color:#ffffff;');
    foreach ($tag->childNodes as $child) {
        $tag->removeChild($child);
        $element->appendChild($child);
    }
    $tag->appendChild($element);

    }
}
echo $doc->saveHTML();

:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<head></head>
<body bgcolor="#393a36">
    <a href="#"><span style="color:#ffffff;">Link 1</span></a>
    <a href="#"><span style="color:#ffffff;">Link 2</span></a>
    <a href="#">Image Link<span style="color:#ffffff;"><img src="mypic.gif"></span></a>
    <a href="#"><span style="color:#ffffff;"><u>Underlined Link</u></span></a>
</body>
</html>
+5
2

node? node? ( , )...

if($spancount == 0){
    $element = $doc->createElement('span');
    $element->setAttribute('style','color:#ffffff;');
    $tag->parentNode->replaceChild($element, $tag);
    $element->apendChild($tag);
}

. , , $tag ... :

if($spancount == 0){
    $element = $doc->createElement('span');
    $element->setAttribute('style','color:#ffffff;');
    foreach ($tag->childNodes as $child) {
        $tag->removeChild($child);
        $element->appendChild($child);
    }
    $tag->appendChild($child);
}

Edit2. , , - node foreach... foreach :

while ($tag->childNodes->length > 0) {
    $child = $tag->childNodes->item(0);
    $tag->removeChild($child);
    $element->appendChild($child);
}
+9

, , , ... :

$tag->appendChild($child);


$tag->appendChild($element);

.

+1

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