title: Laravel Redis delete all keys starting with a string
body: <p>This is Redis key like "product:1:list:somekey"
  I want to remove all keys under list key </p>
  
  <p>I used </p>
  
  <pre class="lang-php prettyprint-override"><code>Redis::del('product:1');
  </code></pre>
  
  <p>function but it didn't work.</p>