使用PHP修改HTML标记元素 [英] Modifying HTML tag elements using PHP

问题描述

我需要图片和图片之间的界限，删除了以下文字。我正在使用PHP。我正在使用DOMDocument来访问所有节点，并且我也能够获取节点路径。但我无法从节点路径修改该特定的HTML标记。有人能告诉我这是否可能吗？
这就是我现在所拥有的..非常感谢你们。

  $ dom = new DOMDocument（ ）; 
 $ dom-> loadHTMLFile（$ pathname）; 
 $ i = 0; 
 $ allNodes = $ dom-> getElementsByTagName（'*'）; 
 $ tagNamesArray = array（）; 
 foreach（$ allNodes as $ node）{
 $ tagNodePath = $ node-> getNodePath（）; 
 $ tagName = end（explode（'/'，$ node-> getNodePath（）））; 
 $ tagNamesArray [$ i] [1] = $ tagName; 
 $ tagNamesArray [$ i] [2] = $ tagNodePath; 
 $ i ++; 
} 
 
 checkForLines（$ tagNamesArray，$ dom）; 
 
函数checkForLines（$ tagsArray，$ dom）{
 $ xPath = new DOMXpath（$ dom）; 
 for（$ i = 0; $ i<（count（$ tagsArray）-1）; $ i ++）{
 if（$ tagsArray [$ i] [1] =='img'& & $ tagsArray [$ i + 1] [1] =='br'）{
 echo $ tagsArray [$ i + 1] [2]。'< br>'; 
 $ lineTag = $ xPath->查询（$ tagsArray [$ i + 1] [2]）; 
 $ domElement = $ dom-> removeChild（$ lineTag）; 
 
 
 
  

解决方案

< p> 或>

...考虑任何图片， < h $ gt;< / code>等等...）之间的图像和文字有< br> 标签， p>

如果您想这样做：

  $ dom = new DOMDocument; 
 $ dom-> loadHTML（< img src ='foo.png'/>< br />< p> Hello World< / p> 
 
 $ img = $ dom-> getElementsByTagName（img）; 
 
 foreach（$ img as $ current）{
 $ sibling = $ current-> nextSibling; 
 if（$ sibling-> nodeName ===br）
 $ current-> parentNode-> removeChild（$ sibling）; 
} 
 
 echo $ dom-> saveHTML（）; 
  

其结果如下：

 < img src =foo.png>< p> Hello World< / p> 
  

I have been trying to modify HTML tag elements, I have a huge list of HTML files which needs to be modified.

I need the lines between the images and the following text removed. I am using PHP. I am using a DOMDocument to access all the nodes and I am also able to get the nodepath. But I am unable to get to modify that particular HTML tag from the nodepath. Can someone tell me if this is possible? This is what I have as of now.. Thanks a lot ppl..

$dom = new DOMDocument();
$dom->loadHTMLFile($pathname);
$i=0;
$allNodes = $dom->getElementsByTagName('*');
$tagNamesArray = array();
foreach($allNodes as $node) {
$tagNodePath = $node->getNodePath();
$tagName = end(explode('/',$node->getNodePath()));
$tagNamesArray[$i][1] = $tagName;
$tagNamesArray[$i][2] = $tagNodePath;
$i++;
}

checkForLines($tagNamesArray, $dom);

function checkForLines($tagsArray, $dom) {
$xPath = new DOMXpath($dom);
for($i=0 ; $i<(count($tagsArray)-1) ; $i++) {
    if($tagsArray[$i][1] == 'img' && $tagsArray[$i+1][1] == 'br') {
        echo $tagsArray[$i+1][2].'<br>';
        $lineTag = $xPath->query($tagsArray[$i+1][2]);
        $domElement = $dom->removeChild($lineTag);
    }
}
}

解决方案

...consider any image and after it some following text(be it <p> or <h1> etc...) between the image and text there are <br> tags which I want removed...

If this is all you want to do:

$dom = new DOMDocument;
$dom->loadHTML( "<img src='foo.png' /><br/><p>Hello World</p>" );

$img = $dom->getElementsByTagName("img");

foreach ( $img as $current ) {
    $sibling = $current->nextSibling;
    if ( $sibling->nodeName === "br" )
        $current->parentNode->removeChild( $sibling );
}

echo $dom->saveHTML();

Which results in the following output:

<img src="foo.png"><p>Hello World</p>

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