PHP extension-memcache

MemcacheWhat is it?

Memcache is a free and openSource code, High-performance, allocated memory object cache system. Used to accelerate Dynamic Web ApplicationsProgramTo reduce the database load. It can cope with any number of connections and use non-blocking network I/O. Because its working mechanism is to open up a space in the memory, and then create a hashtable, memcached self-manages these hashtable. MemcachedWhat is it? Memcached is the main program file of the memcache system. It runs on one or more servers in the form of a daemon. It accepts connection operations from the client at any time and uses shared memory to access data. PHPWhat is memcache in? Memcache mentioned in PHP is an extension of PHP and a client used to connect to memcached. Download files Wget

Http://memcached.googlecode.com/files/memcached-1.4.4.tar.gz

Wget http://www.monkey.org /~ Provos/libevent-1.4.13-stable.tar.gz
Wget http://pecl.php.net/get/memcache-2.2.5.tgz
1. InstallationLibevent Install the libevent library before installing memcached, because memcached uses libevent for socket processing. Tar zxvf libevent-2.0.10-stable.tar.gz
CD libevent-2.0.10-stable
./Configure
Make
Make install
2. Install memcached Tar zxvf memcached-1.4.5.tar.gz
CD memcached-1.4.5
./Configure -- With-libevent =/usr/local
Make
Make install
CD ..
Memcached-D-M 10-u root-l 202.207.177.177-P 11211-C 256-P/tmp/memcached. PID parameter description: The-D option is to start a daemon process,
-M indicates the amount of memory allocated to memcache. The unit is mb. Here I am 10 MB,
-U is the user who runs memcache. Here I am root,
-L is the IP address of the listener server. If there are multiple IP addresses, I have specified the Server IP address 202.207.177.177,
-P is the port for memcache listening. I have set port 11211 here, preferably port 1024 or above,
-The "C" option is the maximum number of concurrent connections. The default value is 1024. I have set 256 here, which is based on the load of your server,
-P is the PID file for saving memcache, Which is saved in/tmp/memcached. PID, 2. to end the memcache process, run kill 'cat/tmp/memcached. PID can also start multiple daemon processes, but the ports cannot be repeated. 3. Check whether memcached starts netstat-ant.
TCP 0 0 202.207.177.177: 11211 0.0.0.0: * port listparts 11 has been enabled, indicating that memcached has been started properly. 3. Install memcache Tar zxvf memcache-2.2.6.tgz
CD memcache-2.2.6
/Data/PHP/bin/phpize
./Configure -- enable-memcache -- With-PHP-Config =/data/PHP/bin/PHP-config -- With-zlib-Dir
Make
Make install The default module generation path is/data/PHP/lib/PHP/extensions/no-debug-non-zts-20090626/  Modify the PHP configuration file PHP. ini and add the following content: Vim/data/PHP/etc/PHP. ini Extension_dir = "/data/PHP/lib/PHP/extensions/no-debug-non-zts-20090626 /"
Extension = memcache. So   4. Test Run the following PHP file. If this is a test! Is output !,
<? PHP
$ Mem = new memcache;
$ Mem-> connect ("192.168.25.237", 11211 );
$ Mem-> set ('key', 'This is a test! ', 0, 60 );
$ Val = $ mem-> get ('key ');
Echo $ val;
?>

[Root @ localhost ~] #/Data/PHP/bin/PHP/data/nginx/html/test. php
This is a test!