PHP MEMCACHE 详解（经典php缓存）

Memcache函数库是在PECL(PHP Extension Community Library)中，主要作用是搭建大容量的内存数据的

临时存放区域，在分布式的时候作用体现的非常明显，否则不建议使用。本人在ubuntu上安装

完运行的时候报错：
/usr/local/memcached/bin/memcached: error while loading shared libraries: libevent-1.4.so.2:

cannot open shared object file: No such file or directory

按照：《libeven、memcached、libmemcache安装》中的方法，使用：

sudo ln -s /usr/local/lib/libevent-1.4.so.2 /usr/lib/libevent-1.4.so.2
可以修正这个BUG

通过新得立安装php的memcached模块，注销/etc/php5/conf.d/memcached.ini里面的“;”，重启apache

，调用phpinfo()出现memcached的信息

执行：
<?php
$memcache = new Memcache;
$memcache->connect(localhost, 11211) or die ("Could not connect");
$version = $memcache->getVersion();
echo "Servers version: ".$version."
";
?>
<?php
$memcache = new Memcache;
$memcache->connect(localhost, 11211) or die ("Could not connect");
print_r($memcache->getStats());
/**
* Array
* (
*     [pid] => 8052
*     [uptime] => 9205
*     [time] => 1205898428
*     [version] => 1.2.5
*     [pointer_size] => 32
*     [rusage_user] => 0.008000
*     [rusage_system] => 0.000000
*     [curr_items] => 1
*     [total_items] => 17
*     [bytes] => 57
*     [curr_connections] => 2
*     [total_connections] => 15
*     [connection_structures] => 3
*     [cmd_get] => 9
*     [cmd_set] => 23
*     [get_hits] => 5
*     [get_misses] => 4
*     [evictions] => 0
*     [bytes_read] => 671
*     [bytes_written] => 850
*     [limit_maxbytes] => 10485760
*     [threads] => 1
* )
*/
?>
<?php
$memcache = new Memcache;
$memcache->connect(localhost, 11211) or die ("Could not connect");
$memcache->set( name, leo, 0, 30);
if(!$memcache->add( name, susan, 0, 30))
{
    echo susan is exist;
};
$memcache->replace( name, lion, 0, 300);
echo $memcache->get补充：Web开发 , php ,