php open modify and save html file

问题

in php I would like to open a html file, delete the content of the div(class Areas) and save it.

$dom = new DOMDocument;
$dom->loadHTMLFile( "temp/page".$y.".xhtml" );
$xpath = new DOMXPath( $dom );
$pDivs = $xpath->query(".//div[@class='Areas']");
foreach ( $pDivs as $div ) {
  $div->parentNode->removeChild( $div );
}
echo htmlspecialchars($dom->saveHTMLFile());

It doesn't work...

My html file look :

<html>
 <head>
  <title></title>
  <link href="css.css" rel="stylesheet" type="text/css" />
 </head>
 <body>
   <div style="height:998px;">
    <img src="images/bg004.jpg" />
     <div class="class1">
         <div class="class2"></div>
         <div class="class2"></div>
    </div>
    <div class="Areas">
         <div class="Area"><a href="index.html"></a></div>
         <div class="Area"><a href="index.html"></a></div>
         <div class="Area"><a href="index.html"></a></div>
    </div>
   </div>
  </body>
</html>

I would like to have this result :

<html>
 <head>
  <title></title>
  <link href="css.css" rel="stylesheet" type="text/css" />
 </head>
 <body>
   <div style="height:998px;">
    <img src="images/bg004.jpg" />
     <div class="class1">
         <div class="class2"></div>
         <div class="class2"></div>
    </div>
    <div class="Areas">

    </div>
   </div>
  </body>
</html>

Thank for your help

UPDATE

How to do the same thing but my file is now a xml ?

I test this :

    copy("temp/page".$y.".xhtml", "/temp/page".$y.".xml");
$dom = new DOMDocument;
$dom->load( "temp/page".$y.".xml" );
$xpath = new DOMXPath( $dom );
$pDivs = $xpath->query(".//div[@class='Area']");
foreach ( $pDivs as $div ) {
    $div->parentNode->removeChild( $div );
}
$dom->savexml();

And I have now

<?xml version="1.0" encoding="utf-8"?>
<html>
 <head>
  <title></title>
  <link href="css.css" rel="stylesheet" type="text/css" />
 </head>
 <body>
   <div style="height:998px;">
    <img src="images/bg004.jpg" />
     <div class="class1">
         <div class="class2"></div>
         <div class="class2"></div>
    </div>
    <div class="Areas">
         <div class="Area"><a href="index.html"></a></div>
         <div class="Area"><a href="index.html"></a></div>
         <div class="Area"><a href="index.html"></a></div>
    </div>
   </div>
  </body>
</html>

回答1:

You were very nearly there. You just needed to change Areas to Area and then use saveHtmlFile instead of saveHTML:

$dom = new DOMDocument;
$dom->loadHTMLFile( "temp/page".$y.".xhtml" );
$xpath = new DOMXPath( $dom );
$pDivs = $xpath->query(".//div[@class='Area']");
foreach ( $pDivs as $div ) {
  $div->parentNode->removeChild( $div );
}
$dom->saveHTMLFile("temp/page".$y.".xhtml");

This is assuming you want to save the HTML back to the original document. Do note that DOMXPath will add a doctype to the top of your document, I assume that's okay?

回答2:

saveHTML just outputs the html as a string use saveHTMLFile to save it as a file.

回答3:

You want to remove the divs with class Area, so simply change the XPath query:

$pDivs = $xpath->query(".//div[@class='Area']"); // not 'Areas'

And of course you will also need to do something with the results, for example:

echo htmlspecialchars($dom->saveHTML()); // prints the result

来源：https://stackoverflow.com/questions/12259785/php-open-modify-and-save-html-file

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php

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removeclass