title: Could not open input file composer.phar in Windows 7
body: <p>I am trying to install an extension in Yii2, while I installing through command prompt using</p>
  
  <pre><code>C:\wamp\www\project&gt;php composer.phar require mdmsoft/yii2-admin "~1.0"
  </code></pre>
  
  <p>I am getting an error like this:</p>
  
  <blockquote>
    <p>could not open input file composer.phar</p>
  </blockquote>