我将以下脚本放在一起，允许用户以原始文件夹结构查看他们保存的上传图片。
更新代码
<?php session_start();
$_SESSION['username']=$_POST['username'];
$_SESSION['locationid']=$_POST['locationid'];
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<?php
//This variable specifies relative path to the folder, where the gallery with uploaded files is located.
$galleryPath = 'UploadedFiles/' . $_SESSION['username'] . '/' . $_SESSION['locationid'] . '/';
//let's DEBUG the above assignment
if (!is_dir($galleryPath)) { die("No folder exists at $galleryPath!"); }
$absGalleryPath = realpath($galleryPath);
//let's DEBUG this one too
if (!is_dir($absGalleryPath)) { die("No folder exists at $absGalleryPath!"); }
$descriptions = new DOMDocument('1.0');
// DEBUG: let's check for the XML while we're at it
//if (!file_exists($absGalleryPath.'files.xml')) { die("No XML found at $absGalleryPath"."files.xml"); }
$descriptions->load($absGalleryPath . '/' . 'files.xml');
$items = array();
for ($i = 0; $i < $descriptions->documentElement->childNodes->length; $i++) {
$xmlFile = $descriptions->documentElement->childNodes->item($i);
$path = $xmlFile->getAttribute('name');
$path = explode('/', $path);
$t = &$items;
for ($j = 0; $j < count($path); $j++) {
if (empty($t[$path[$j]])) {
$t[$path[$j]] = array();
}
$t = &$t[$path[$j]];
}
$t['/src/'] = $xmlFile->getAttribute('source');
$t['description'] = $xmlFile->getAttribute('description');
$t['size'] = $xmlFile->getAttribute('size');
}
$basePath = empty($_GET['path']) ? '' : $_GET['path'];
if ($basePath) {
$basePath = explode('/', $basePath);
for ($j = 0; $j < count($basePath); $j++) {
$items = &$items[$basePath[$j]];
}
}
$files = array();
$dirs = array();
function urlpartencode(&$item, $index) {
$item = rawurlencode($item);
}
foreach ($items as $key => $value) {
if (isset($value['/src/'])) {
$value['/src/'] = explode('/', $value['/src/']);
array_walk($value['/src/'], 'urlpartencode');
$value['/src/'] = implode('/', $value['/src/']);
$files[] = array(
'name' => $key,
'src' => $value['/src/'],
'description' => htmlentities($value['description'], ENT_COMPAT, 'UTF-8'),
'size' => htmlentities($value['size'], ENT_COMPAT, 'UTF-8')
);
} else {
$dirs[] = $key;
}
}
$basePath = empty($_GET['path']) ? '' : $_GET['path'];
$up = dirname($basePath);
if ($up == '.') {
$up = '';
}
sort($files);
sort($dirs);
?>
<head>
<title>View Image Folders</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<link href="Styles/style.css" rel="stylesheet" type="text/css" />
<script src="Libraries/jquery/jquery-1.4.3.min.js" type="text/javascript"></script>
<style type="text/css">
<!--
.style1 {
font-size: 14px;
margin-top: 5px;
margin-right: -50px;
}
-->
</style>
<body style="font-family: Calibri; color: #505050; margin-right: 160px; margin-left: -180px;">
<div align="right" class="style1"> <a href = "index.php" /> Add Images <a/> → <a href = "javascript:document.imagefolders.submit()"> View All Images </a> </div>
<form id="imagefolders" name="imagefolders" class="page" action="gallery.php" method="post" enctype="application/x-www-form-urlencoded">
<div id="container">
</div>
<div id="center">
<div class="aB">
<div class="aB-B">
<?php if ('Uploaded files' != $current['title']) :?>
<?php endif;?>
<div class="demo">
<input name="username" type="hidden" id="username" value="IRHM73" />
<input name="locationid" type="hidden" id="locationid" value="1" />
<div class="inner">
<div class="container">
<div class="gallery">
<table class="gallery-link-table" cellpadding="0" cellspacing="0">
<thead>
<tr class="head">
<th class="col-name">
Name
</th>
<th class="col-size">
Size
</th>
<th class="col-description">
Description
</th>
</tr>
</thead>
<tbody>
<tr class="directory odd">
<td class="col-name">
<a href="?path=<?php echo rawurlencode($up); ?>">..</a>
</td>
<td class="col-size">
</td>
<td class="col-description">
</td>
</tr>
<?php $i = 1; ?>
<?php foreach ($dirs as $dir) : ?>
<tr class="directory <?php $i++; echo ($i % 2 == 0 ? 'even' : 'odd'); ?>">
<td><a href="?path=<?php echo rawurlencode(($basePath ? $basePath . '/' : '') . $dir); ?>"><?php echo htmlentities($dir, ENT_COMPAT, 'UTF-8'); ?></a></td>
<td>Folder</td>
<td></td>
</tr>
<?php endforeach; ?>
<?php foreach ($files as $file) : ?>
<tr class="<?php $i++; echo ($i % 2 == 0 ? 'even' : 'odd'); ?>">
<td><a target="_blank" href="<?php echo $galleryPath . $file['src']; ?>"><?php echo htmlentities($file['name'], ENT_COMPAT, 'UTF-8'); ?></a></td>
<td><?php echo htmlentities($file['size'], ENT_COMPAT, 'UTF-8'); ?></td>
<td><?php echo htmlentities($file['description'], ENT_COMPAT, 'UTF-8'); ?></td>
</tr>
<?php endforeach; ?>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</form>
</body>
</html>
我可以正确显示文件夹，但是当我点击文件夹以深入查看单个图像时，我收到以下错误：
Warning: DOMDocument::load() [domdocument.load]: I/O warning : failed to load external entity "/homepages/2/d333603417/htdocs/development/UploadedFiles/files.xml" in /homepages/2/d333603417/htdocs/development/imagefolders.php on line 25 Warning: Invalid argument supplied for foreach() in /homepages/2/d333603417/htdocs/development/imagefolders.php on line 65
第25行是这行$descriptions->load($absGalleryPath . '/' . 'files.xml'); and line 65 is this: foreach（$ items as $ key =＆gt; $ value）{`
我的初始脚本没有使用会话变量，我没有任何问题。但是我现在需要包含这些，所以我确信这些与foreach命令之间存在冲突。我已经做了很多研究，看看是否有其他人有类似的问题，但找不到任何东西。
我只是想知道是否有人可以看看这个并让我知道我错在哪里。
非常感谢和问候
答案 0 :(得分：2)
Warning: DOMDocument::load() [domdocument.load]: I/O warning : failed to load external entity "/homepages/2/d333603417/htdocs/development/UploadedFiles/files.xml"
问题的根源是$descriptions->load($absGalleryPath . '/' . 'files.xml');
尝试加载您不确定存在或可读的文件是不好的做法
这样的事情会更好，并确保你抓住异常
$file = $absGalleryPath . '/' . 'files.xml' ;
if(!is_readable($file) || !file_exists($file))
{
throw new Exception("Missing XML File");
}
Warning: Invalid argument supplied for foreach() in /homepages/2/d333603417/htdocs/development/imagefolders.php on line 65
一个。由于您无法加载第一个xml文档...尝试继续此过程会导致此错误
B中。 foreach ($items as $key => $value) {所以它会在填充或不填充的地方独立运行
℃。太多的引用会使您的代码更难以理解和调试......
我认为你应该发布files.xml的内容，你会惊讶于它创新的解决方案以及人们想出的有效代码
答案 1 :(得分：0)
我认为Invalid argument supplied for foreach()与您的foreach ($items as $key => $value)有关。因此，请将var_dump($items);放在该foreach之前，以查看items变量的完全转储。好像它甚至都不是阵列。
答案 2 :(得分：0)
var_dump来检查您获得的数据。XML。