php install yaml extension
<p>I try to install yaml extension for PHP. <br>
I follow this tutorial : <a href="https://github.com/LegendOfMCPE/LoM-CMS/wiki/How-to-Install-LibYAML" rel="nofollow noreferrer">https://github.com/LegendOfMCPE/LoM-CMS/wiki/How-to-Install-LibYAML</a></p>

<p>I have already do: </p>

<pre><code>sudo apt-get install php-pear libyaml-dev
pecl install yaml
</code></pre>

<p>But I don't understand the end:</p>

<pre><code>/etc/php5/apache2/php.ini
extension=yaml.so
</code></pre>

<p>Can you explain me the last commands?</p>