title: Unable to install some PHP packages on Alpine Linux
body: <p>I am trying to install some PHP packages that I use for my application in Alpine Linux. The packages that I am currently using come from the Remi repo and I install them successfully on CentOS 7, but when I try to install tthe same packages on Alpine, it says not found. An example of a package is <code>php-cli</code>.</p>
  
  <p>Am I doing it right or is there a recommended way of installing packages in Alpine? I am using php7 and Alpine 3.8.</p>
  
  <p>Note: I am using <code>php7-</code> prefix when I am installing a package in Alpine.</p>
  
  <p>Thanks in advance.</p>