session.auto_start = 0

session.save_path = '/temp'

; http://php.net/session.cookie-secure
;session.cookie_secure =

; Lifetime in seconds of cookie or, if 0, until browser is restarted.
; http://php.net/session.cookie-lifetime
session.cookie_lifetime = 0

; The path for which the cookie is valid.
; http://php.net/session.cookie-path
session.cookie_path = /

; The domain for which the cookie is valid.
; http://php.net/session.cookie-domain
session.cookie_domain =

; Whether or not to add the httpOnly flag to the cookie, which makes it inaccessible to browser scripting languages such as JavaScript.
; http://php.net/session.cookie-httponly
session.cookie_httponly =

//session_set_cookie_params(有效期，有效路徑，有效域，是否僅安全傳輸連接，是否HTTPOnly);
session_set_cookie_paramas(60,'/','me.com',true,true);
session_start();

//刪除當(dāng)前會話對應(yīng)的session數(shù)據(jù)區(qū)并關(guān)閉session機制（周期結(jié)束后無法持久化）
session_destroy();
//$_SESSION還是存在的

$_SESSION = array();

session_destroy();
unset($_SESSION);
setcookie('PHPSESSID',"",time()-1);
//PHPSESSID稱之為session.name 可通過php.ini配置
//可通過session_name()獲取當(dāng)前值
; Name of the session (used as cookie name).
; http://php.net/session.name
session.name = PHPSESSID

session_set_save_handler();

<?php
//session 開始執(zhí)行時最早執(zhí)行的一個存儲相關(guān)方法，用于初始化存儲操作的相關(guān)資源
function ses_beg(){
// echo 'begin</br>';
 $link = mysql_connect('127.0.0.1','root','root');
 mysql_query('set names utf8');
 mysql_select_db('session_override');
}
//在session機制關(guān)閉時執(zhí)行的方法，最后一個執(zhí)行的存儲相關(guān)操作，用于收尾
function ses_end(){
 echo 'end</br>';
 return true;
}
//不需要負責(zé)反序列化操作，在讀取之后腳本自動執(zhí)行
function ses_read($ses_id){
// echo 'read</br>';
 $sql = "select session_content from session where session_id = '$ses_id'";
 $res = mysql_query($sql);
 if($row = mysql_fetch_assoc($res)){
 return $row['session_content'];
 }else{
 return '';
 }
}
//不需要序列化操作，在寫入之前腳本會自動執(zhí)行
function ses_write($ses_id,$ses_con){
// echo 'write</br>';
// echo $ses_id,$ses_con;
 $sql = "replace into session values( '$ses_id' , '$ses_con',unix_timestamp() )";
 echo $sql.'</br>';
 return mysql_query($sql);
}
//當(dāng)調(diào)用session_destroy()時執(zhí)行
function ses_del($ses_id){
// echo 'del</br>';
 $sql = "delete from session where session_id = '$ses_id'";
 return mysql_query($sql);
}
//session.gc_maxlifetime = 1440
//在開啟session機制的過程中，有概率地執(zhí)行垃圾回收機制
//session.gc_probability = 1
//session.gc_divisor = 1000
//@param session.gc_maxlifetime
//return boolean
function ses_gc($maxlifetime){
// echo 'gc</br>';
 ini_set('session.gc_divisor',2);
 $sql = 'delete from session_override where last_time<unix_timestamp()-'.$maxlifetime;
 return mysql_query($sql);
}
//filesPHP內(nèi)置的session存儲處理器
//重寫session機制，應(yīng)該改為user用戶自定義
ini_set('session.save_handler','user');
//配置存儲機制要在start之前，要保證session不自動開啟
//session.auto_start=0
//.htacess php_flag session.auto_start 0
session_set_save_handler('ses_beg','ses_end','ses_read','ses_write','ses_del','ses_gc');
session_start();
$_SESSION['id'] = 'test';
session_destroy();

session_set_params(3600)

ini_set('session.gc_maxlifetime','3600')

//是否僅僅使用cookie攜帶session-id
ini_set('session.use_only_cookies','0');
//是否自動采用其它方式自動傳session-id，不安全
ini_set('session.use_trans_sid','1');