好吧,我很困惑的地狱。 我有我保存在session对象。 我可以将项目添加到该对象。 很简单为止。 我初始化这样的对象:
$template = new Template($mysqli);
$_SESSION['template'] = serialize($template);
现在,这个应该创建一个崭新的品牌对象,并将其分配给会话。 然后,我有一些代码,通过AJAX请求增加了项目。 该代码如下:
$template = unserialize($_SESSION['template']);
$prodid = $_GET['product_id'];
$template->addItem($prodid);
echo var_dump($template->getItems());
$_SESSION['template'] = serialize($template);
再次,应该很简单。 现在,这里的的代码,第一位不进行重置问题$_SESSION['template']
同时它应该,所以我得到的所有到目前为止,我已经添加的项目,重新加载页面不能解决问题。
我发现这是造成恶作剧的文件,但我不知道我能做些什么这个问题。 这是一个包括和它的所需部位发挥作用的不同部分。 我添加功能的网站,我不觉得,如果我删除的功能,业主会请。 这里的文件:
<?php
include_once( 'DBE.class.php' ) ;
################################################
# Function: Sessions_open
# Parameters: $path (string), $name (string)
# Returns: bool
# Description: This is an over-ride function call
# that we need to create so that the php internal
# session manager doesn't store our session in the
# file system, since we are storing it in the
# db. Storing a session in a file system on the
# server inhibits scalability for two reasons:
# 1: A large number of users may be hitting the site
# and clog the space on the hard-drive of the server
# due to the sheer amount of session files stored
# 2: The website may be behind a load-balancer and
# therefore the server handling the page request
# may not have the session stored on its file system
################################################
function Sessions_open ( $path, $name ) {
return TRUE ;
}
################################################
# Function: Sessions_close
# Parameters: N/A
# Returns: bool
# Description: This is an over-ride function call
# that we need to create so that the php internal
# session manager doesn't store our session in the
# file system, since we are storing it in the
# db. Storing a session in a file system on the
# server inhibits scalability for two reasons:
# 1: A large number of users may be hitting the site
# and clog the space on the hard-drive of the server
# due to the sheer amount of session files stored
# 2: The website may be behind a load-balancer and
# therefore the server handling the page request
# may not have the session stored on its file system
################################################
function Sessions_close () {
return TRUE ;
}
################################################
# Function: Sessions_read
# Parameters: $SessionID (string)
# Returns: (string) or (false) on error
# Description: This function is used at startup to read
# the contents of the session.
# If no sess data, the empty string ("") is returned.
# Otherwise, the serialized sess data is returned.
# On error, false is returned.
################################################
function Sessions_read ( $SessionID ) {
include_once( 'DBE.class.php' ) ;
$dbe = new DBE() ;
//default return value to false
$returnVal = FALSE ;
$query = "SELECT DataValue
FROM Sessions
WHERE SessionID = '$SessionID' " ;
$result = $dbe->Select( $query ) ;
if( count( $result ) == 1 ) {
$returnVal = $result[0]['DataValue'] ;
//update the session so that we don't time-out after creating
$query = "UPDATE Sessions
SET LastUpdated = NOW()
WHERE SessionID = '$SessionID'" ;
$dbe->Update( $query ) ;
} else {
//Insert here to simplify the write function
$query = "INSERT INTO Sessions (SessionID, DataValue) VALUES ( '$SessionID', '' )" ;
$dbe->Insert( $query ) ; //pass the insert stmt
//set returnVal to '' being that we didn't find the SessionID
$returnVal = '' ;
}
return( $returnVal ) ;
}
################################################
# Function: Sessions_write
# Parameters: $SessionID (string), $Data
# Returns: bool
# Description: This function is used at startup to read
# the contents of the session.
# If no sess data, the empty string ("") is returned.
# Otherwise, the serialized sess data is returned.
# On error, false is returned.
################################################
function Sessions_write( $SessionID, $Data ) {
include_once( 'DBE.class.php' ) ;
$dbe = new DBE() ;
//default to true
$returnVal = TRUE ;
//update the session
$query = "UPDATE Sessions
SET DataValue = '$Data'
WHERE SessionID = '$SessionID'" ;
$result = $dbe->Update( $query ) ; //pass the update stmt to the dbEngine..
//test for success
if( $result == -1 )
$returnVal = FALSE ;
//return the return value
return( $returnVal ) ;
}
################################################
# Function: Sessions_delete
# Parameters: $SessionID (string)
# Returns: bool
# Description: This function is used to delete the session
################################################
function Sessions_destroy( $SessionID ) {
include_once( 'DBE.class.php' ) ;
$dbe = new DBE() ;
$query = "DELETE FROM Sessions WHERE SessionID = '$SessionID' " ;
$dbe->Delete( $query ) ;
return( TRUE ) ;
}
################################################
# Function: Sessions_delete
# Parameters: $SessionID (string)
# Returns: bool
# Description: This function is used to delete the session
################################################
function Sessions_gc( $aMaxLifetime ) {
include_once( 'DBE.class.php' ) ;
$dbe = new DBE() ;
$query = "DELETE FROM Sessions WHERE (UNIX_TIMESTAMP(NOW()) - UNIX_TIMESTAMP( LastUpdated )) > $aMaxLifetime " ;
$dbe->Delete( $query ) ;
return( TRUE ) ;
}
session_set_save_handler( "Sessions_open", "Sessions_close",
"Sessions_read", "Sessions_write",
"Sessions_destroy", "Sessions_gc" ) ;
?>
我认为这是改变会话的基本功能,但我不能肯定。 而这造成我的麻烦,在会话重置模板。 任何人有任何意见或知道我能做些什么来解决这个问题。 我完全难住了,因此任何帮助是极大的赞赏。