title: How install PHP's MongoDB driver — "pecl install mongo" fails
body: <p>How do I install PHP's MongoDB client driver?</p>
  
  <p>I've done this already:</p>
  
  <pre><code>  $ sudo aptitude install php5-dev php5-cli php-pear make
  </code></pre>
  
  <p>But the next step fails:</p>
  
  <pre><code>  $ sudo pecl install mongo
    No releases available for package "pecl.php.net/mongo"
    install failed
  </code></pre>
  
  <p>When I have a look at <a href="http://pecl.php.net/mongo" rel="noreferrer">http://pecl.php.net/mongo</a>, I find listed many versions of the Mongo driver. Am I supposed to include a version number or something? However all installation instructions I've found simply state that one use <code>sudo pecl install mongo</code> and nothing else. — How do I install the Mongo driver?</p>
  
  <p>Some details:</p>
  
  <ol>
  <li><p>OS: Linux Mint 16, which is based on Ubuntu.</p></li>
  <li><p><code>pecl list-channels</code> says:</p>
  
  <pre><code> Registered Channels:
   Channel      Alias   Summary
   doc.php.net  phpdocs PHP Documentation Team
   pear.php.net pear    PHP Extension and Application
                        Repository
   pecl.php.net pecl    PHP Extension Community Library
   __uri        __uri   Pseudo-channel for static packages
  </code></pre></li>
  </ol>