我正在创建一个应用程序,其中一个文件夹由用户名创建,在该文件夹中,另一个文件夹被动态创建,名为Profile_Pics
。
我也使用过Ajax脚本。
它只是Facebook专辑类型的应用程序。现在的问题是,对于这个我正在使用会话的东西,用户可以创建其他文件夹,也就像他的文件夹中的“My_Pics”一样。该文件夹用于存储照片。
在username文件夹中创建的相册的路径就像这样
Candidate_Pics/sex/Username/album_name
如果用户名为saz26的男性首先注册,则默认情况下将创建文件夹Profile_pics。
Candidate_Pics/Male/saz26/Profile_pics
如果他创建另一张专辑,请说My_Pics:
Candidate_Pics/Male/saz26/My_pics
在My_Pics下,他可以存储其他照片。
现在我创建了这个页面,我需要使用session。我也使用会话变量。
这是我的photos.php文件:
<?php
session_start();
ob_start();
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
<link rel="stylesheet" type="text/css" media="screen" href="CSS/main.css" />
<link rel="stylesheet" type="text/css" media="screen" href="CSS/style.css" />
<script type="text/javascript" src="AJAX/AjaxCreateAlbum.js"></script>
<script>
function showalbum()
{
document.getElementById('AlbumDiv').style.display = "block";
document.getElementById('fade').style.display = "block"
return false;
}
</script>
</head>
<body>
<div id="pictures">
<h2>Photos</h2>
<form id="picture_form" name="picture_form" method="post" action="javascript:getfolder(document.getElementById('picture_form'));">
<table align="center" width="650" cellpadding="0" cellspacing="0" border="0">
<tr>
<td width="50px" align="center"/>
<td width="100px" align="center">
<label for="album_name">Create Album::</label>
</td>
<td width="50px" align="center"/>
<td width="100px" align="center">
<input type="text" name="album_name" id="album_name" class="textfield" style="width: 100px;"/>
</td>
<td width="50px" align="center"/>
<td width="100px" align="center">
<input type="submit" name="submit" id="submit" class="button" value="Create Album" />
</td>
<td width="50px" align="center"/>
<td width="100px" align="center">
<div id="album_report"></div>
</td>
<td width="50px" align="center"/>
</tr>
<tr>
<td colspan="9" height="20px"/>
</tr>
</table>
<?php
$folder=array();
if(is_dir("Candidate_Pics/". "$_SESSION[sex]". "/" . "$_SESSION[logged_user]"))
{
$dir=opendir("Candidate_Pics/". "$_SESSION[sex]". "/" . "$_SESSION[logged_user]");
$nofiles=0;
while ($file = readdir($dir))
{
if ($file != '.' && $file != '..')
{
$nofiles++;
$files[$nofiles]=$file;
}
}
closedir($dir);
}
/* populate sample data */?>
<?php
/* how many columns */
$column_number='3';
/* html table start */
?><table border="1" cellspacing="5" cellpadding="5" width="650px" align="center"
><?php
$recordcounter=1; /* counts the records while they are in loop */
foreach($files as $record) {
/* decide if there will be new Table row (<TR>) or not ... left of division by column number is the key */
if($recordcounter%$column_number==1){ echo "<tr>"; }
?>
<td width="200px" align="center">
<?php echo $record;?><br/>
<?php
$_SESSION['album_name']="Candidate_Pics/$_SESSION[sex]/$_SESSION[logged_user]/$record";
echo "$_SESSION[album_name]"; ?>
<a href="javascript:void(0)" onClick="showalbum();" ><img src="Images/folder.png" width="200px"/></a><br/>
<input type="button" name="delete" id="delete" value="delete" class="button"/>
</td>
<?php
/* decide if there will be end of table row */
if($recordcounter%$column_number==0){ echo "</tr>"; }
$recordcounter++; /* increment the counter */
}
if(($recordcounter%$column_number)!=1){ echo "</tr>"; }
?></table>
</form>
</div>
<div id="AlbumDiv" class="white_content">
<table align="center" cellpadding="0" cellspacing="0" border="0" width="382px">
<tr>
<td height="16px">
<a href="javascript:void(0)"
onclick="document.getElementById('AlbumDiv').style.display =
'none';document.getElementById('fade').style.display='none'">
<img src="images/close-icon.png" style="border-style: none; border-color: inherit;
border-width: 0px; height: 17px; width: 16px;" align="right" /></a>
</td>
</tr>
<tr>
<td>
<?php echo "$_SESSION[album_name]";?>
</td>
</tr>
<tr>
<td height="16px"/>
</tr>
</table>
</div>
<div id="fade" class="black_overlay">
</div>
</body>
</html>
问题是该行
echo "$_SESSION[album_name]";
foreach循环中的为每条记录(比如说文件夹)提供rite结果, 但行
echo "$_SESSION[album_name]";
在AlbumDiv内部(用于灯箱),
仅使用Profile_pics给出结果,即“Candidate_Pics / Male / saz26 / Profile_pics”
无论我点击哪个文件夹图像......
以下是AjaxCreateAlbum.js脚本
var http_request = false;
function makePOSTalbum(url, parameters)
{
http_request = false;
if (window.XMLHttpRequest)
{
// Mozilla, Safari,...
http_request = new XMLHttpRequest();
if (http_request.overrideMimeType)
{
// set type accordingly to anticipated content type
//http_request.overrideMimeType('text/xml');
http_request.overrideMimeType('text/html');
}
}
else if (window.ActiveXObject)
{ // IE
try
{
http_request = new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e)
{
try
{
http_request = new ActiveXObject("Microsoft.XMLHTTP");
}
catch (e) {}
}
}
if (!http_request)
{
alert('Cannot create XMLHTTP instance');
return false;
}
http_request.onreadystatechange = alertAlbumCreated;
http_request.open('POST', url, true);
http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
http_request.setRequestHeader("Content-length", parameters.length);
http_request.setRequestHeader("Connection", "close");
http_request.send(parameters);
}
function alertAlbumCreated()
{
if (http_request.readyState == 4)
{
if (http_request.status == 200)
{
//alert(http_request.responseText);
result = http_request.responseText;
document.getElementById('album_report').innerHTML = result;
}
else
{
alert(http_request.status);
}
}
}
function getfolder(obj)
{
alert("huhu");
var poststring = "album_name=" + encodeURI( document.getElementById("album_name").value );
alert(poststring);
makePOSTalbum('createalbum.php', poststring);
}
以下是createalbum.php脚本:
<?php
session_start();
if(mkdir("Candidate_Pics/$_SESSION[sex]/$_SESSION[logged_user]/".$_POST['album_name']))
echo "done";
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
</head>
<body>
</body>
</html>
以下是样式表文件:
.black_overlay
{
display: none;
position: fixed;
top: 0%;
left: 0%;
width: 100.7%;
height: 100%;
background-color: black;
z-index: 1001;
-moz-opacity: 0.8;
opacity: .80;
filter: alpha(opacity=80);
}
.white_content
{
display: none;
position: fixed;
top: 37%;
left: 32%;
width: 382px;
padding: 0px;
border: 0px solid #a6c25c;
background: url(loginpanel.png);
z-index: 1002;
overflow: auto;
}
.headertext
{
font-family: Arial, Helvetica, sans-serif;
font-size: 14px;
color: #f19a19;
font-weight: bold;
}
.textfield
{
border: 1px solid #a6c25c;
width: 100px;
border : 1px solid #999;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
-khtml-border-radius: 5px;
_border-radius: 5px;
}
.dropdown
{
border: 1px solid #a6c25c;
border : 1px solid #999;
border-radius: 5px;
}
.button2
{
background-color: #a6c25c;
color: White;
font-size: 11px;
font-weight: bold;
border: 1px solid #7f9db9;
width: 100px;
}
.button
{
zoom: 1;
background: url(button.png);
color: White;
font-size: 11px;
font-weight: bold;
border: 1px solid #7f9db9;
-khtml-border-radius: 5px;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
#border-radius: 5px;
_border-radius: 5px;
border-radius: 5px;
}
#loading{
text-align: center;
visibility: hidden;
}
#content{
color: #000000;
margin: 0 0 20px 0;
line-height: 1.3em;
font-size: 14px;
}
.text
{
border: 1px solid #a6c25c;
border : 1px solid #999;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
-khtml-border-radius: 5px;
_border-radius: 5px;
}
/******* TOP *******/
#topmenu{
margin: 0 0;
padding: 0 0 0 0;
background: url(button.png);
}
/******* /TOP *******/
/******* MENU *******/
#topmenu #menu_main{
float: left;
list-style-type: none;
margin: 0px 0 0px 0px;
}
#topmenu #menu_main li{
float: left;
text-transform: uppercase;
color: #000099;
margin-left: 50px;
margin-right: 50px;
}
#topmenu #menu_main li:hover{
color: #6fa5fd;
cursor: pointer;
}
/******* /MENU *******/
/******* FOOTER *******/
#footer{
background: #efefef;
border: 1px solid #d0ccc9;
padding: 5px;
color: #7e7e7e;
font-size: 11px;
text-align: right;
}
/******* /FOOTER *******/
答案 0 :(得分:1)
如果我正确读取此内容,则会在foreach循环中多次设置会话变量,然后再调用。每次在循环中写入该会话变量时,它都会覆盖前一个值,因此一旦完成该循环,会话变量将保留的唯一值就是循环中的最后一个值。
幸运的是,您可以非常轻松地解决这个问题,因为您在下一行的<a>
标记中编写了一个javascript函数调用。您可以将其更改为echo
相册名称(当您仍处于循环中时),因为客户端上的内容将是Javascript参数。
<a href="javascript:void(0)" onClick="showalbum();" ><img src="Images/folder.png" width="200px"/></a><br/>
变为:
<a href="javascript:void(0)" onClick="showalbum('<?php echo $_SESSION['album_name']; ?>');" ><img src="Images/folder.png" width="200px"/></a><br/>
然后,您所要做的就是更改showalbum
函数以接受参数,并使用它来设置预期<td>
元素的内容。例如:
function showalbum(album_name)
{
document.getElementById('AlbumDiv').style.display = "block";
document.getElementById('fade').style.display = "block"
document.getElementById('albumName').innerHTML = album_name; // this line added
return false;
}
在PHP中,
<td>
<?php echo "$_SESSION[album_name]";?>
</td>
变为:
<td id="albumName"></td>