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php使用 memcache 来存储 session 方法总结,memcachesession

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Release: 2016-06-13 08:47:39
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php使用 memcache 来存储 session 方法总结,memcachesession

设置session用memcache来存储

方法I: 在 php.ini 中全局设置
session.save_handler = memcache
session.save_path = "tcp://127.0.0.1:11211"


方法II: 某个目录下的 .htaccess
php_value session.save_handler "memcache"
php_value session.save_path "tcp://127.0.0.1:11211"


方法III: 再或者在某个一个应用中

1 ini_set("session.save_handler", "memcache"); 
2 ini_set("session.save_path", "tcp://127.0.0.1:11211");
Copy after login



使用多个 memcached server 时用逗号","隔开,并且和 Memcache::addServer() 文档中说明的一样,可以带额外的参数"persistent"、"weight"、"timeout"、"retry_interval" 等等,类似这样的:"tcp://host1:port1?persistent=1&weight=2,tcp://host2:port2" 。

如果安装的PECL是memcached(依赖libmemcached库的那个扩展),则配置应为
Php代码 收藏代码
ini_set("session.save_handler", "memcached"); // 是memcached不是memcache
ini_set("session.save_path", "127.0.0.1:11211"); // 不要tcp:[/b]


代码例子(不依赖libmemcached库的那个)

 1 <?php 
 2 session_start(); 
 3 if (!isset($_SESSION['TEST'])) { 
 4 $_SESSION['TEST'] = time(); 
 5 } 
 6 
 7 $_SESSION['TEST3'] = time(); 
 8 
 9 print $_SESSION['TEST']; 
10 print "<br><br>"; 
11 print $_SESSION['TEST3']; 
12 print "<br><br>"; 
13 print session_id(); 
14 ?>
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 用 sessionid 去 memcached 里查询一下:

?
1 2 3 4 5 6 <?php $memcache = memcache_connect('localhost', 11211); var_dump($memcache->get('19216821213c65cedec65b0883238c278eeb573e077')); $memcache->set('aaaa', 'hello everyone'); var_dump($memcache->get('aaaa')); ?>

会看到
string(37) "TEST|i:1177556731;TEST3|i:1177556881;"
这样的输出,证明 session 正常工作。

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