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如果文件是否由 Ajax 调用，我希望有不同的输出。为此，我有这个代码女巫工作正常：

/* AJAX check  */
if(!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    $content = get_content();
    die($content);
}

我过滤竞争的功能是：

function get_content(){
    //$file = file_get_contents('index.html'); //works better but i get only errors
    $dom = new DomDocument();
    $dom->loadHTML($_SERVER['REQUEST_URI']); //or $file
    $section= $dom->getElementsByTagName('section');
    return $section->item(0)->nodeValue;
}

我的输出总是空的。这里有什么问题？

!!!我不是在寻找 DOMDocument 错误处理!!!

我现在要做的是：

/* decide what the content should be up here .... */

/* AJAX check  */
if(!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    /* if ajax,  show only content of the section tag */
    $file = file_get_contents($_SERVER['SCRIPT_FILENAME']);
    $section = preg_replace("/.*<section[^>]*>|<\/section>.*/si", "", $file);
    die($section);
}

/* not ajax, show page.... */

它似乎工作。我不知道这是最好的解决方案，因为在这个论坛的某个地方我读到使用 DomDocument() 更好地实现这一点。欢迎任何建议？

这是html文件：

<!doctype html>
<!-- Determine browser JS free -->
<!-- HTML5 Mobile Boilerplate -->
<!--[if IEMobile 7]><html class="no-js iem7"><![endif]-->
<!--[if (gt IEMobile 7)|!(IEMobile)]><!--><html class="no-js" lang="en"><!--<![endif]-->

<!-- HTML5 Boilerplate -->
<!--[if lt IE 7]><html class="no-js lt-ie9 lt-ie8 lt-ie7" lang="en"> <![endif]-->
<!--[if (IE 7)&!(IEMobile)]><html class="no-js lt-ie9 lt-ie8" lang="en"><![endif]-->
<!--[if (IE 8)&!(IEMobile)]><html class="no-js lt-ie9" lang="en"><![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en"><!--<![endif]-->


<head>
                    <meta charset="utf-8">
            <title>title</title>


            <link rel="stylesheet" type="text/css" href="../css/style.css">
            <link rel="shortcut icon" href="img/base/favicon.html" />
            <link rel="apple-touch-icon-precomposed" href="img/base/apple-touch-icon-57x57-precomposed.html" />
            <link rel="apple-touch-icon-precomposed" sizes="72x72" href="img/base/apple-touch-icon-72x72-precomposed.html" />
            <link rel="apple-touch-icon-precomposed" sizes="114x114" href="img/base/apple-touch-icon-114x114-precomposed.html" />
            <script src="/js/libs/modernizr.custom.js"></script>
            <!--[if (IE 7)]>
                <link rel="stylesheet" href="/css/fallback/icons-ie7.css">
            <![endif]-->

            </head>

    <body >


        <section role="main">

    <header class="hero-banner">
        <img class="resize" src="/img/base/spacer-hero.png" rel="/img/designers/banners/cloe-banner3.jpg" alt="Cloe" />
        <noscript><img src="/img/designers/banners/cloe-banner3.jpg" alt="Cloe" /></noscript>
        <hgroup>
            <h1>Claudia</h1>
            <h2 class="text-hl">Designerin</h2>
        </hgroup>
    </header>


        </section>



        <footer role="contentinfo">


            <p><small>&copy;2013 joe</small></p>
            <p><small>Our website uses delicious cookies to improve your experience. We'll assume you're ok with that.</small></p>


        </footer>


        <!-- jQuery from Google's CDN with local fallback -->
        <script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
        <script>window.jQuery || document.write('<script src="/js/libs/jquery-1.8.3.min.js"><\/script>')</script>

        <script src="/js/libs/wfl.js"></script>

        <!-- Initialises scripts from plugins.js and helper.js -->
        <script src="/js/script.js"></script>

        <!-- Google Goggles -->


    </body>

</html>
4

1 回答 1

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You can turn the errors of by setting internal errors to true:

$doc = new DOMDocument;

$before = libxml_use_internal_errors(true);
$doc->loadHTML($html);
libxml_use_internal_errors($before);

You then won't have the errors logged any longer. In your case most likely you've got display errors enabled which might be okay for development, but on your production server, please switch to error logging otherwise your website would reveal too much data to the outside.

See as well:

于 2013-04-23T19:21:25.503 回答