MooseLucifer
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Currently, the Memcached module supports 2 versions and each of these versions will support different types of PHP:
So to support PHP 7, you have to install Memcached 3 and vice versa, the necessary condition is that you have to have a library for Memcached, libmemcached.
This post will guide installation on Memcached Version 3.
Step 1: Download the memcached module and libmemcached at the following links:
Step 2: Install Libmemcached
Step 3: Install Memcached module
After installation is complete, you will see an attached message linking to the file not containing folder of memcached module as follows:
Note that this link /usr/local/lib/php/extensions/no-debug-non-zts-20160303/ can be different from your link when you installed Memcached on your server. So, when you are installing, just copying the link that memcached generated for your server to replace with our link mentioned in this post.
Step 4: Configure PHP to accept the configuration of the memcached module
You use the following command to find the file php.ini
Save and restart apache with the following command:
Now check using the command:
If the memcached text appears, congratulations, you have succeeded in compile the memcached module.
Step 5: Install memcached service
memcached service listen on port 11211, there are 2 ways to install it and here I use yum to make it easy to install
Verify that the memcached service is working with the following command:
If there is a tcp connection, it is successful to listen on this port.
Now if the source code is wordpress you can download the w3 total cache plugin to combine with the memcached methods to see a significant improvement in page load speed.
Step 6: Check if memcached works
Method 1:
In the directory containing the source code you create a file cache_test.php content as follows:
Save and access your_domain/cache_test.php form for the first time, there will be no cache and the 2nd time onwards will have cache, if the content from the 2nd time onwards is "hello", "I am data, I am saved in memcached! ” then it will succeed.
Method 2:
You will use telnet command to check:
The result is as follows: saving key - values
Clear cache and telnet exit with the following command, revisit the page, if the key - value values are recorded, it means that memcached module has worked with the memcached service, guys.
Good luck!
Code:
php-memcached 3.x:
- Supports PHP 7.0 - 7.1.
- Requires libmemcached 1.x or higher.
- Optionally supports igbinary 2.0 or higher.
- Optionally supports msgpack 2.0 or higher.
Code:
php-memcached 2.x:
- Supports PHP 5.2 - 5.6.
- Requires libmemcached 0.44 or higher.
- Optionally supports igbinary 1.0 or higher.
- Optionally supports msgpack 0.5 or higher.This post will guide installation on Memcached Version 3.
Step 1: Download the memcached module and libmemcached at the following links:
Code:
memcached download: https://pecl.php.net/package/memcached
libmemcached download: https://launchpad.net/libmemcached/+download
wget https://launchpad.net/libmemcached/1.0/1.0.18/+download/libmemcached-1.0.18.tar.gz
wget https://pecl.php.net/get/memcached-3.0.4.tgz
Code:
gunzip libmemcached-1.0.18.tar.gz
tar -xvf libmemcached-1.0.18.tar
cd libmemcached-1.0.18
./configure
make && make install
Code:
tar -xvzf memcached-3.0.4.tgz
cd memcached-3.0.4
phpize
./configure
make && make install
Code:
Installing shared extensions: /usr/local/lib/php/extensions/no-debug-non-zts-20160303/Step 4: Configure PHP to accept the configuration of the memcached module
You use the following command to find the file php.ini
Code:
php -i | grep "php.ini"
Next, open the php.ini file and add to the end of the file the following directive:
extension = "/usr/local/lib/php/extensions/no-debug-non-zts-20160303/memcached.so"
Code:
/etc/init.d/httpd restart
Code:
php -m | grep memcachedStep 5: Install memcached service
memcached service listen on port 11211, there are 2 ways to install it and here I use yum to make it easy to install
Code:
yum install memcached -y
/etc/init.d/memcached start
chkconfig memcached on
Code:
netstat -nltp | grep 11211Now if the source code is wordpress you can download the w3 total cache plugin to combine with the memcached methods to see a significant improvement in page load speed.
Step 6: Check if memcached works
Method 1:
In the directory containing the source code you create a file cache_test.php content as follows:
Code:
<?php
$mem = new Memcached();
$mem->addServer("127.0.0.1", 11211);
$result = $mem->get("hello");
if ($result) {
echo $result;
} else {
echo "Not find the key, I will add now!";
$mem->set("hello", "I am data, I am saved in memcached.") or die("Can not save to memcached...");
}
?>Method 2:
You will use telnet command to check:
Code:
telnet localhost 11211
stats items
Code:
STAT items: 2: number 1
STAT items: 2: age 106
STAT items: 2: evicted 0
STAT items: 2: evicted_nonzero 0
STAT items: 2: evicted_time 0
STAT items: 2: outofmemory 0
STAT items: 2: tailrepairs 0
STAT items: 2: reclaimed 0
STAT items: 2: expired_unfetched 0
STAT items: 2: evicted_unfetched 0
Code:
flush_all
quit
