PHP başka bir DOM öğesi DOM öğesi sarın

0 Cevap php

Ben aslında Regex kullanarak bu satırlar boyunca bir soru sordum ama üstün olduğunu ... yerine PHP DOM kütüphane kullanımı tavsiye edilmiştir, ama ben yine de şaşırıp.

Temelde ben zaten <span> sarılı değilse bir <span> bir <a> içeriğini kaydırmak istiyorum.

<?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; 
}

Bu çıkış sağlar:

PHP Warning: DOMDocumentFragment::appendXML(): Entity: line 1: parser error : Premature end of data in tag img line 1 in /private/var/folders/78/78vHGigZHcuFeXB1KKJSb++++TI/-Tmp-/untitled_3xd..php on line 24
PHP Warning: DOMDocumentFragment::appendXML(): <img src="mypic.gif">Image Link in /private/var/folders/78/78vHGigZHcuFeXB1KKJSb++++TI/-Tmp-/untitled_3xd..php on line 24 PHP Warning: DOMDocumentFragment::appendXML(): ^ in /private/var/folders/78/78vHGigZHcuFeXB1KKJSb++++TI/-Tmp-/untitled_3xd..php on line 24 PHP Warning: DOMNode::appendChild(): Document Fragment is empty in /private/var/folders/78/78vHGigZHcuFeXB1KKJSb++++TI/-Tmp-/untitled_3xd..php on line 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>
This mostely works, except that it is really picky, and as you can see it dies if here is an img (or similar) tag in side the ahref.

Ne bu işi yapmak için en iyi yoldur. Ben şimdi utanç verici uzun bir süre için karşı başımı beceriyor oldum.

EDIT
Based on feeback below, here is the revised code and output. Note that the text preceding the img tag isn't being wrapped for some reason. Any Ideas?

$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();

Çıktı:

<!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>

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