Howto : Enabling memcached extension on php.

Memcached is a general-purpose distributed memory caching system, but is now used by many other sites. It is often used to speed up dynamic database-driven websites by caching data and objects in RAM to reduce the number of times an external data source (such as a database or API) must be read. Memcached runs on Unix, Windows and MacOS and is distributed under a permissive free software license.

Installation :

You may simply install mamcached using pacl library, but it need the dependency package libmencached download , When compailing you might got an error mamcached not found so tha you may use some parameters with configuring like  –without-memcached

error Output:

checking for memcached session support... enabled
checking for memcached igbinary support... disabled
checking for memcached location... configure: error: libmemcached support requires libmemcached. Use --with-memcached-dir=<DIR> to specify the prefix where libmemcached headers and library are located
ERROR: `/tmp/pear/temp/memcached/configure' failed

Step :1- (Libmamcached Installation )

1.# wget http://launchpadlibrarian.net/73843684/libmemcached-0.50.tar.g
2.# tar -zxvf libmemcached-0.50.tar.g
3.# cd libmemcached-0.5
4.#./configure --without-memcached && make && make install

Step:2 (Memcached installation)

1.#pecl install memcache
2.#echo "extension=/usr/lib/extensions/no-debug-zts-20060613/memcached.so" >> /etc/php.ini

Success Output :

Build complete.
Don't forget to run 'make test'.

running: make INSTALL_ROOT="/tmp/pear/temp/pear-build-rootmdfn1M/install-memcached-1.0.2" install
Installing shared extensions:     /tmp/pear/temp/pear-build-rootmdfn1M/install-memcached-1.0.2/usr/lib/extensions/no-debug-zts-20060613/
running: find "/tmp/pear/temp/pear-build-rootmdfn1M/install-memcached-1.0.2" | xargs ls -dils
1974089   4 drwxr-xr-x 3 root root   4096 2011-07-27 11:17 /tmp/pear/temp/pear-build-rootmdfn1M/install-memcached-1.0.2
1974111   4 drwxr-xr-x 3 root root   4096 2011-07-27 11:17 /tmp/pear/temp/pear-build-rootmdfn1M/install-memcached-1.0.2/usr
1974112   4 drwxr-xr-x 3 root root   4096 2011-07-27 11:17 /tmp/pear/temp/pear-build-rootmdfn1M/install-memcached-1.0.2/usr/lib
1974113   4 drwxr-xr-x 3 root root   4096 2011-07-27 11:17 /tmp/pear/temp/pear-build-rootmdfn1M/install-memcached-1.0.2/usr/lib/extensions
1974114   4 drwxr-xr-x 2 root root   4096 2011-07-27 11:17 /tmp/pear/temp/pear-build-rootmdfn1M/install-memcached-1.0.2/usr/lib/extensions/no-debug-zts-20060613
1974110 180 -rwxr-xr-x 1 root root 184221 2011-07-27 11:17 /tmp/pear/temp/pear-build-rootmdfn1M/install-memcached-1.0.2/usr/lib/extensions/no-debug-zts-20060613/memcached.so

Build process completed successfully
Installing '/usr/lib/extensions/no-debug-zts-20060613/memcached.so'
install ok: channel://pecl.php.net/memcached-1.0.2
configuration option "php_ini" is not set to php.ini location
You should add "extension=memcached.so" to php.ini

Thats it..