title: How to install bcmath in Ubuntu for PHP 7.1
body: <p>I'm using an Ubuntu 16 server for testing with <code>php7.1</code>. One of my app uses <code>bcadd</code> function. I know that I need to install <code>bcmath</code> module for that but I'm unable to find <code>php7.1-bcmath</code>. When I tried to install <code>apt install php-bcmath</code>, it simply installed <code>php7.0-bcmath</code> module.</p>
  
  <p>I was unable to find <code>php7.1-bcmath</code> module anywhere to install on my server. Does anybody has an idea?</p>
  
  <p><code>apt install php7.1-bcmath</code> returned following,</p>
  
  <pre><code>E: Unable to locate package php7.1-bcmath
  
  E: Couldn't find any package by glob 'php7.1-bcmath'
  
  E: Couldn't find any package by regex 'php7.1-bcmath'
  </code></pre>