10 baby steps to install Memcached Server and access it with PHP

On 01.25.10, In Miscellaneous, PHP, by Steve

Thinking of implementing caching for your php application , you are at a right place. Just in 10 simple (copy and paste) steps you can install and access Memcached Server.

Step1: Install libevent ,libmemcached and libmemcached devel (dependency)

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1 2	yum install libevent yum install libmemcached libmemcached-devel

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Step 2: Install Memcached Server

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1	yum install memcached

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Step 3: Start Memcached server

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1	memcached -d -m 512 -l 127.0.0.1 -p 11211 -u nobody

(d = daemon, m = memory, u = user, l = IP to listen to, p = port)

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Step 4: Check your memcached server is running successfully

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1	ps -eaf \| grep memcached

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Step 5: Connect Memcached server via telnet

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1	telnet 127.0.0.1 11211

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Step 6: Check current status of Memcached Server on telnet prompt

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stats

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Step 7: Exit telnet

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quit

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Step 8: Install PHP client to access Memcached Server

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1	pecl install memcache

It will make “memcache.so”, you have to just put it on your /etc/php.ini file.

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Step 9: Restart your apache server

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1	service httpd restart

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Step 10: Open your favorite editor to type below code and execute it, it will cache your data into Memcached server and access it back for you

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<?php
$memcache = new Memcache;
$memcache->connect('127.0.0.1', 11211) or die ("Could not connect"); //connect to memcached server
 
$mydata = "i want to cache this line"; //your cacheble data
 
$memcache->set('key', $mydata, false, 100); //add it to memcached server
 
$get_result = $memcache->get('key'); //retrieve your data
 
var_dump($get_result); //show it
?>

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Hurray!! All done!
Enjoy Caching with Memcached.
Cheers!

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Comments

Paulius

01.25.10

For example, CentOS does not have Memcached in its repository, so you should use RPMForge (http://wiki.centos.org/AdditionalResources/Repositories/RPMForge) or other repo.

BTW, when you use only one server (localhost), it’s better to use APC or XCache because they don’t open TCP connection.

arun

01.25.10

This post is over-explained,rightly said Baby steps. in reality however you need 4 steps Max.
Cheers !!

stoimen

01.25.10

really useful! thanks!

okos

01.25.10

install too long

john

01.25.10

I am to a great extent impressed with the article I have just read. I wish the author of webdeveloperjuice can continue to provide so much useful information and unforgettable experience to its readers. There is not much to state except the following universal truth: No matter how much you dumb down something, someone out there is dumber. I will be back.

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01.25.10

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Mike Scarborough

01.25.10

Nice article.

I would recommend using the newer Memcached PHP library instead of the older ‘Memcache-without-the-d’lib. The newer one is a lot faster and manages connections much faster.

The older library still shows up first in Google results, so here’s the link:
http://php.net/manual/en/book.memcached.php

-mike