Memcached is an in-memory key-value store for small chunks of arbitrary data (strings, objects) from results of database calls, API calls, or page rendering.
Free & open source, high-performance, distributed memory object caching system
For PHP there is php-memached Unfortunately installation of php-memecahced is is not that simple as apt-get install because latest php-memcached is not available via native package managers i.e apt get .
Follow these simple steps to install and setup PHP-Memcached with php 7 ( 7.1) .
All steps are tested on Ubuntu 16.04 LTS , but these steps are same for almost all major Linux distribution .
memcache and memcached serialize data differently, meaning that data written with one library can’t necessarily be read with the other library.
Prerequisites
php-dev package is required
sudo apt-get install php7.1-dev
Requirements
sudo apt-get update sudo apt-get install build-essential pkg-config make git g++ gcc
Setup
Now lets install required libraries
sudo apt-get install libmemcached-dev libmsgpack-dev libmsgpackc2
now clone and build php-memcached
git clone --depth 1 https://github.com/php-memcached-dev/php-memcached.git cd php-memcached phpize ./configure make sudo mv modules/ /usr/local/memcached/
Enable
following command will create memcached.ini files under /etc/php/7.1/cli/conf.d/ and /etc/php/7.1/fpm/conf.d/ directories
echo 'extension=/usr/local/memcached/memcached.so' | \ sudo tee /etc/php/7.1/cli/conf.d/memcached.ini echo 'extension=/usr/local/memcached/memcached.so' | \ sudo tee /etc/php/7.1/fpm/conf.d/memcached.ini
Verify
“-m” command prints all the compiled modules. you can also use ” -i ” to see all loaded configuration or old phpinfo() function to print all info .
php -m | grep "memcached" && php-fpm7.1 -m | grep "memcached"
sample output:
Restart PHP-FPM
If you are using php-fpm with nginx or Apache restart php-fpm and your web-server to load changes
sudo systemctl status php7.1-fpm.service
