php安装使用memcached
最近由于项目关系,又要开始折腾CI框架了。其中需要在CI框架中使用到memcached缓存处理技术。
走,搞起,先装memcached:
第一步:先下载memcached.exe文件:
下载地址:http://www.tanbo.name/wp-content/uploads/2012/12/memcached.exe
第二步:下载php_memcache.dll
memcached下载地址:(在网上找的,注意必须跟自己PHP版本相对应才行。怎么查看自己的php版本?写个phpinfo文件即可)
http://www.tanbo.name/wp-content/uploads/2012/12/php_memcache.dll_.zip
第三步:开始安装
1、将php_memcache.dll放入你的php安装包的ext扩展文件夹中。然后在php.ini中的扩展目录下面添加一行extension=php_memcache.dll
2、将memcached.exe文件放在C盘根目录下(随便你放哪里),然后打开进入cmd,输入一下命令进行安装和开启memcached。(提醒:开启好后,以后就不用管了,电脑启动自己会开启memcached的)
安装: memcached.exe -d install
服务: net start "memcached Server"
启动: memcached.exe -d start
如图:
第四步:重启自己的web环境apache,查看phpinfo()内是否已装载了memcache。如果有就表示安装ok了。
第五步:写个代码测试下。如果没有报错就一切ok了。
<?php$mem = new Memcache;$mem->connect('localhost', 11211) or die ("Could not connect");echo "<h2>版本:".$mem->getVersion()."<h2>";echo "<h2>版本:".$mem->getExtendedStats()."<h2>";print_r($mem->getExtendedStats());?>
这里注意下:memcached的默认端口号是11211。如果被占用,就改成别的。
这就表示可以使用了。
参考资料:http://www.tanbo.name/html/158.html
php安装使用memcached,到这里算是ok了。但是发现了新疑问:
memcache和memcached的区别是啥???
Memcache模块提供了于memcached方便的面向过程及面向对象的接口,memcached是为了降低动态web应用 从数据库加载数据而产生的一种常驻进程缓存产品。
memcached是一个高性能分布式的内存对象缓存系统, 通常被用于降低数据库加载压力以提高动态web应用的响应速度。
看手册吧:
http://php.net/manual/zh/book.memcache.php
http://php.net/manual/zh/book.memcached.php
memcache和memcached的区别 网上资料 :
http://www.cnblogs.com/scotoma/archive/2011/02/15/1955573.html
http://www.cnblogs.com/wangtao_20/p/4057591.html
http://blog.csdn.net/yaday/article/details/7570032
https://blog.linuxeye.com/345.html

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