Some extensions for running the YII2 framework in Ubuntu environment

Intl extension (PHP intl is an internationalization extension, a wrapper of the ICU library. )

sudo apt-get install php5-intl

<span lang="en-US"><code>sudo service apache2 restart</code></span><span lang="en-US"><code>PDO SQLite extension</code></span><span lang="en-US"><code>sudo apt-get install php5-sqlite </code></span><span lang="en-US"><code>sudo service apache2 restart</code></span><span lang="en-US"><code>PDO PostgreSQL extension</code></span><span lang="en-US"><code>sudo apt-get install php5-pgsql</code></span><span lang="en-US"><code>service apache2 restart</code></span><span lang="en-US"><code>Memcache</code></span>

　Memcache is divided into two parts ,Memcacheserver and client. MemcacheThe server runs as a service, and the creation, storage, and deletion of all data caches are actually completed here. Client, here we refer to the callable extension of PHP.

sudo apt-get install memcached
After installing the Memcacheserver, we need to start the service:
　memcached -d -m 128 -p 11211 -u root
Here we need to explain the startup parameters of the memcachedservice:
　-p Listening port
　-l ConnectedIPAddress, The default is the local machine
　-d start Startmemcachedservice
　　 -d restart RestartmemcachedService
　　 -d stop|shutdown Shut down the running memcachedservice
　　 -d install installmemcachedservice
　　 -d uninstall Uninstallmemcachedservice
　　 -u Run as (Only valid when running as root)
　　 -m Maximum memory usage, unit MB. Default 64MB
　 -M Return an error when memory is exhausted instead of deleting items
　　 -c Maximum number of simultaneous connections, the default is 1024
　　-f Block size growth factor, default is 1.25-n Minimum allocated space, key+value+flagsDefault is 48
　-h Show help2)InstallMemcacheClient

<span lang="en-US"><code>Memcache extension</code></span><span lang="en-US"><code>sudo apt-get install php5-memcache</code></span><br>测试一下：

$mem = new Memcache;
$mem->connect("127.0.0.1", 11211);
$mem->set('key', 'This is a memcached test!', 0, 60);
$val = $mem->get('key');
echo $val;

<br><span lang="en-US"><code>APC extension</code></span><span lang="en-US"><code>sudo apt-get install php-apc</code></span><code>会提示安装 </code><span lang="en-US"><code>php5-</code><code>apcu php-apc </code></span><code>直接</code><span lang="en-US"><code>y</code></span><span lang="en-US"><code>ImageMagick PHP extension </code></span><span lang="en-US"><code>sudo apt-get install imagemagick libmagickwand-dev</code></span><span lang="en-US"><code>sudo pecl install imagick</code></span><span lang="en-US"><code>sudo echo "extension=imagick.so" >> /etc/php5/apache2/php.ini</code></span><span lang="en-US"><code>sudo /etc/init.d/apache2 restart</code></span>

The above introduces some extensions for running the YII2 framework in the Ubuntu environment, including some aspects. I hope it will be helpful to friends who are interested in PHP tutorials.