3
好的，我很困惑。我有一個存儲在會話中的對象。我可以添加項目到這個對象。到目前爲止很簡單。我初始化這樣的對象：PHP會話混亂
$template = new Template($mysqli);
$_SESSION['template'] = serialize($template);
現在，這個應該創建一個嶄新的品牌對象，並將其分配給會話。然後我有一些代碼通過AJAX請求添加項目。該代碼如下：
$template = unserialize($_SESSION['template']);
$prodid = $_GET['product_id'];
$template->addItem($prodid);
echo var_dump($template->getItems());
$_SESSION['template'] = serialize($template);
再次，應該很簡單。現在是這個問題，第一個代碼不應該重置$_SESSION['template']，所以我得到了迄今爲止添加的所有項目，重新加載頁面並不能解決問題。
我發現了導致惡作劇的文件，但我不知道我能做些什麼。這是一個包含，它是網站不同部分的功能所必需的。我正在爲網站添加功能，如果我刪除了功能，我不認爲所有者會這麼做。這裏的文件：
<?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") ;
?>
我認爲這是改變會議的基本功能，但我不太確定。這會導致我在重置會話中的模板時遇到麻煩。任何人有任何想法或知道我能做些什麼來解決這個問題。我完全被難住，所以任何幫助，不勝感激。