title: Running Composer returns: "Could not open input file: composer.phar"
body: <p>I am new to symfony2 and reading <a href="http://tutorial.symblog.co.uk/#tutorial-parts" rel="noreferrer">symblog</a>. In third chapter while trying with data-fixtures I tried the command: </p>
  
  <p><code>php composer.phar update</code> </p>
  
  <p>but I got the error: </p>
  
  <p><code>Could not open input file: composer.phar</code></p>
  
  <p>So I googled a little and tried </p>
  
  <pre><code>php composer.phar install
  </code></pre>
  
  <p>but still getting the same error. So please guide how to deal with this composer to install new extentions or bundles like data-fixtures in symfony2 using wamp.</p>