Linux under PHP extension installation memcache module

Linux under PHP extension installation memcache module

Roid

Installation Environment
RHEL 4
PHP 5.2.6

Required Software
Libevent-1.4.6-stable.tar.gz (http://monkey.org/~provos/libevent/)
Memcache-2.2.3.tgz (Http://pecl.php.net/package/memcache)
Memcached-1.2.6.tar.gz (http://www.danga.com/memcached/)

Installation configuration

1. Installing Libevent
# tar zxf libevent-1.4.6-stable.tar.gz
# CD Libevent-1.4.6-stable
#./configure–prefix=/usr/local/servers/libevent
# Make && make install

2. Installing memcached
# tar ZXVF memcached-1.2.6.tar.gz
# CD memcached-1.2.6
#./configure–prefix=/usr/local/servers/memcached–with-libevent=/usr/local/servers/libevent
# Make && make install

3. Running memcached
#/usr/local/servers/memcached-d-M 128-l localhost-p 11211-u Root

-D runs memcached in the daemon (daemon) mode;
-M sets the amount of memory that memcached can use, in units of M;
-L Set the listening IP address, if it is native, it is usually possible not to set this parameter;
-P Sets the listening port, which defaults to 11211, so you can also not set this parameter;
-U designated user;

If you encounter a problem running memcached, the error message is as follows:

/usr/local/servers/memcached/bin/memcached:error while loading shared libraries:libevent-1.4.so.2:cannot open shared Object File:no such file or directory

Run ld_dubug=libs to know the load path of the library when the memcached starts. Specific as follows:

# ld_debug=libs/usr/local/servers/memcached/bin/memcached-v
10929:find library=libevent-1.4.so.2 [0]; Searching
10929:search Cache=/etc/ld.so.cache
10929:search path=/lib/tls/i686/sse2:/lib/tls/i686:/lib/tls/sse2:/lib/tls:/lib/i686/sse2:/lib/i686:/lib/sse2:/ lib:/usr/lib/tls/i686/sse2:/usr/lib/tls/i686:/usr/lib/tls/sse2:/usr/lib/tls:/usr/lib/i686/sse2:/usr/lib/i686:/ Usr/lib/sse2:/usr/lib (System search Path)
10929:trying file=/lib/tls/i686/sse2/libevent-1.4.so.2
10929:trying file=/lib/tls/i686/libevent-1.4.so.2
10929:trying file=/lib/tls/sse2/libevent-1.4.so.2
10929:trying file=/lib/tls/libevent-1.4.so.2
10929:trying file=/lib/i686/sse2/libevent-1.4.so.2
10929:trying file=/lib/i686/libevent-1.4.so.2
10929:trying file=/lib/sse2/libevent-1.4.so.2
10929:trying file=/lib/libevent-1.4.so.2
10929:trying file=/usr/lib/tls/i686/sse2/libevent-1.4.so.2
10929:trying file=/usr/lib/tls/i686/libevent-1.4.so.2
10929:trying file=/usr/lib/tls/sse2/libevent-1.4.so.2
10929:trying file=/usr/lib/tls/libevent-1.4.so.2
10929:trying file=/usr/lib/i686/sse2/libevent-1.4.so.2
10929:trying file=/usr/lib/i686/libevent-1.4.so.2
10929:trying file=/usr/lib/sse2/libevent-1.4.so.2
10929:trying file=/usr/lib/libevent-1.4.so.2
10929:

Then create a link to libevent-1.4.so.2 and then run memcached:
# ln-s/usr/local/servers/libevent/lib/libevent-1.4.so.2/lib/libevent-1.4.so.2

4. Installing the PHP memcache extension

You can use the PECL installer that comes with PHP
#/usr/local/servers/php5/bin/pecl Install Memcache

can also be installed from the source code
# tar zxf memcache-2.2.3.tgz
# CD memcache-2.2.3
#/usr/local/servers/php5/bin/phpize
#./configure–enable-memcache=/usr/local/servers/memcached–with-php-config=/usr/local/servers/php5/bin/ Php-config–with-apxs2=/usr/sbin/apxs
# Make && Make Inst

After installation, there will be a hint like this:
Installing Shared extensions:/usr/local/servers/php5/lib/php/extensions/no-debug-non-zts-20060922/

Keep this in mind and then modify the php.ini to put

Extension_dir = "./"
Revision changed to
Extension_dir = "/usr/local/servers/php5/lib/php/extensions/"

and add a row
extension= "No-debug-non-zts-20060922/memcache.so"

5. View with Phpinfo

Test module

<?php

$memcache = new Memcache;
$memcache->connect (' localhost ', 12000) or Die ("Could not Connect");

$version = $memcache->getversion ();
echo "Server ' s version:". $version. " <br/>n ";

$tmp _object = new StdClass;
$tmp _object->str_attr = ' Test ';
$tmp _object->int_attr = 123;

$memcache->set (' key ', $tmp _object, False, or Die ("Failed-to-save data at the server");
echo "Store data in the cache (data would expire in seconds) <br/>n";

$get _result = $memcache->get (' key ');
echo "Data from the Cache:<br/>n";

Var_dump ($get _result);

?>

Show Results:

Server ' s version:1.2.6
Store data in the cache (data would expire in seconds)
Data from the cache:

Object (StdClass) [3] public ' str_attr ' = = String ' Test '

Linux under PHP extension installation memcache module