php包含未加载的内容，可能存在哈希标签/地址问题 - php include content not loading, possible hash tag/address issue

http://www.queness.com/post/328/a-simple-ajax-driven-website-with-jqueryphp

我正在尝试让上面的脚本工作，但有一些更改。我需要将内容加载为php includes，而不是html字符串。我现在的主要问题是，我认为代码没有指向正确的页面，因此没有新的内容。

php:

switch($_GET['page'])  {
    case 'code' : $page = include ($_SERVER['DOCUMENT_ROOT'].'mysite/code.php'); break;
    case 'design' : $page = include ($_SERVER['DOCUMENT_ROOT'].'mysite/design.php'); break;
    case 'writing' : $page = include ($_SERVER['DOCUMENT_ROOT'].'mysite/writing.php'); break;

html:

<ul id="menu">
         <li><a title="index" href="#index.php" rel="ajax"><span>home</span></a></li>
         <li><a title="code" href="#code.php" rel="ajax"><span>code</span></a></li>
         <li><a title="design" href="#design.php" rel="ajax"><span>design</span></a></li>
         <li><a title="illustration" href="#illustration.php" rel="ajax"><span>illustration</span></a></li>
         <li><a title="writing" href="#writing.php" rel="ajax"><span>writing</span></a></li>
         <li><a title="links" href="#links.php" rel="ajax"><span>links</span></a></li>
         <li><a title="about" href="#about.php" rel="ajax"><span>about</span></a></li>
        </ul>

javascript:

<script type="text/javascript">
    $(document).ready(function () {
    //Check if url hash value exists (for bookmark)
    $.history.init(pageload);   
    //highlight the selected link
    $('a[href=' + document.location.hash + ']').addClass('selected');
    //Seearch for link with REL set to ajax
    $('a[rel=ajax]').click(function () {
        //grab the full url
        var hash = this.href;
        //remove the # value
        hash = hash.replace(/^.*#/, '');
        //for back button
        $.history.load(hash);   
        //clear the selected class and add the class class to the selected link
        $('a[rel=ajax]').removeClass('selected');
        $(this).addClass('selected');
        //hide the content and show the progress bar
        $('#content').hide();
        $('#loading').show();
        //run the ajax
        getPage();
        //cancel the anchor tag behaviour
        return false;
    }); 
});

function pageload(hash) {
    //if hash value exists, run the ajax
    if (hash) getPage();    
}
function getPage() {
    //generate the parameter for the php script
    var data = 'page=' + document.location.hash.replace(/^.*#/, '');
    $.ajax({
        url: "loader.php",  
        type: "GET",        
        data: data,     
        cache: false,
        success: function (html) {  
            //hide the progress bar
            $('#loading').hide();   
            //add the content retrieved from ajax and put it in the #content div
            $('#content').html(html);
            //display the body with fadeIn transition
            $('#content').fadeIn('slow');       
        }       
    });
}
    </script>

你确定你得到了正确的路径吗？

case 'code' : $page = include($_SERVER['DOCUMENT_ROOT'].DIRECTORY_SEPARATOR.'mysite/code.php'); break;
case 'design' : $page = include($_SERVER['DOCUMENT_ROOT'].DIRECTORY_SEPARATOR.'mysite/design.php'); break;
case 'writing' : $page = include($_SERVER['DOCUMENT_ROOT'].DIRECTORY_SEPARATOR.'mysite/writing.php'); break;

不同环境中的$_SERVER['DOCUMENT_ROOT']可能有尾部斜杠或没有，因此在包含来自$_SERVER['DOCUMENT_ROOT']的文件时要小心

case 'code' : $page = include ($_SERVER['DOCUMENT_ROOT'].DIRECTORY_SEPARATOR.'mysite/code.php'); break;
case 'design' : $page = include ($_SERVER['DOCUMENT_ROOT'].DIRECTORY_SEPARATOR.'mysite/design.php'); break;
case 'writing' : $page = include ($_SERVER['DOCUMENT_ROOT'].DIRECTORY_SEPARATOR.'mysite/writing.php'); break;

include不返回任何内容，只有true/false表示includes成功/失败。基本上，它很像eval()，只是使用了外部文件。如果你包含的页面实际上正在生成输出，你必须首先捕获它：

ob_start();
include('somepage.php');
$content = ob_get_clean();
return $content;

或者，如果includes正在生成内容并将其保存到变量中，则：

include('somepage.php');
echo $whatever_var_that_somepage_php_stored_the_content_in;