网站 也就一天不到1000的IP ，总是 在 双核2G 10M 带宽的服务器放， MB 还是tt 卡的要死， 打开 mysql 慢查询日志,没几天就2G 多满查询， 结果看基本都是SESSION 引起的， 于是把 ECSHOP自身的SESSION 改成了MEMCACHED
放下代码:
效果:剩余时间：0时16分19秒
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231 | <!--?php if (!defined('IN_ECS')){ die('Hacking attempt');} /* */// 该类用于将SESSION直接写入Memcache/* */class cls_session{ var $db = NULL; var $max_life_time = 1800; // SESSION 过期时间 var $session_name = ''; var $session_id = ''; var $session_expiry = ''; var $session_md5 = ''; var $session_cookie_path = '/'; var $session_cookie_domain = ''; var $session_cookie_secure = false; var $_ip = ''; var $_time = 0; function __construct(&$db, $session_table, $session_data_table, $session_name = 'ECS_ID', $session_id = '') { $m = new Memcache; $m--->addServer('127.0.0.1', 11211); $this->cls_session($m, $session_name, $session_id); } function cls_session(&$db, $session_name = 'ECS_ID', $session_id = '') { $GLOBALS['_SESSION'] = array(); if (!empty($GLOBALS['cookie_path'])) { $this->session_cookie_path = $GLOBALS['cookie_path']; } else { $this->session_cookie_path = '/'; } if (!empty($GLOBALS['cookie_domain'])) { $this->session_cookie_domain = $GLOBALS['cookie_domain']; } else { $this->session_cookie_domain = ''; } if (!empty($GLOBALS['cookie_secure'])) { $this->session_cookie_secure = $GLOBALS['cookie_secure']; } else { $this->session_cookie_secure = false; } $this->session_name = $session_name; $this->db = &$db; $this->_ip = real_ip(); if ($session_id == '' && !empty($_COOKIE[$this->session_name])) { $this->session_id = $_COOKIE[$this->session_name]; } else { $this->session_id = $session_id; } if ($this->session_id) { $tmp_session_id = substr($this->session_id, 0, 32); if ($this->gen_session_key($tmp_session_id) == substr($this->session_id, 32)) { $this->session_id = $tmp_session_id; } else { $this->session_id = ''; } } $this->_time = time(); if ($this->session_id) { $this->load_session(); } else { $this->gen_session_id(); setcookie($this->session_name, $this->session_id . $this->gen_session_key($this->session_id), 0, $this->session_cookie_path, $this->session_cookie_domain, $this->session_cookie_secure); } register_shutdown_function(array(&$this, 'close_session')); } function gen_session_id() { $this->session_id = md5(uniqid(mt_rand(), true)); return $this->insert_session(); } function gen_session_key($session_id) { static $ip = ''; if ($ip == '') { $ip = substr($this->_ip, 0, strrpos($this->_ip, '.')); } return sprintf('%08x', crc32(!empty($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] . ROOT_PATH . $ip . $session_id : ROOT_PATH . $ip . $session_id)); } function insert_session() { return $this->db->set($this->session_id, array('expiry'=>$this->_time, 'ip'=>$this->_ip, 'data'=>'a:0:{}'), false, $this->max_life_time); } function load_session() { $session = $this->db->get($this->session_id); if (empty($session)) { $this->insert_session(); $this->session_expiry = 0; $this->session_md5 = '40cd750bba9870f18aada2478b24840a'; $GLOBALS['_SESSION'] = array(); } else { if (!empty($session['data']) && $this->_time - $session['expiry'] <= $this->max_life_time) { $this->session_expiry = $session['expiry']; $this->session_md5 = md5($session['data']); $GLOBALS['_SESSION'] = unserialize(stripslashes($session['data'])); } else { $this->session_expiry = 0; $this->session_md5 = '40cd750bba9870f18aada2478b24840a'; $GLOBALS['_SESSION'] = array(); } } } function update_session() { $adminid = !empty($GLOBALS['_SESSION']['admin_id']) ? intval($GLOBALS['_SESSION']['admin_id']) : 0; $userid = !empty($GLOBALS['_SESSION']['user_id']) ? intval($GLOBALS['_SESSION']['user_id']) : 0; $data = serialize($GLOBALS['_SESSION']); $this->_time = time(); if ($this->session_md5 == md5($data) && $this->_time < $this->session_expiry + 10) { return true; } $data = addslashes($data); return $this->db->replace($this->session_id, array('expiry'=>$this->_time, 'ip'=>$this->_ip, 'userid'=>$userid, 'adminid'=>$adminid, 'data'=>$data), false, $this->max_life_time); } function close_session() { $this->update_session(); return true; } function delete_spec_admin_session($adminid) { if (!empty($GLOBALS['_SESSION']['admin_id']) && $adminid) { $all_items = $this->db->getExtendedStats('items'); $items = $all_items['127.0.0.1:11211']['items']; foreach ($items as $key => $item) { if (isset($item['adminid'])) { if ($item['adminid'] == $adminid) return $this->db->delete($key); } } } else { return false; } } function destroy_session() { $GLOBALS['_SESSION'] = array(); setcookie($this->session_name, $this->session_id, 1, $this->session_cookie_path, $this->session_cookie_domain, $this->session_cookie_secure); /* ECSHOP 自定义执行部分 */ if (!empty($GLOBALS['ecs'])) { $GLOBALS['db']->query('DELETE FROM ' . $GLOBALS['ecs']->table('cart') . " WHERE session_id = '$this->session_id'"); } /* ECSHOP 自定义执行部分 */ return $this->db->delete($this->session_id); } function get_session_id() { return $this->session_id; } function get_users_count() { $all_items = $this->db->getExtendedStats(); return $count = $all_items['127.0.0.1:11211']['curr_items'];//由于有其他key的缓存，因此这只是个接近数值 } } ?> |
用法: 直接备份原来的 includes/cls_session.php 这个文件就可以了
改成后发现网站速度飞快。
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