title: What does this symbol '<>' means in Laravel Query Builder?
body: <p>I know this is a really beginner question, but I don't know what the meaning of this. I'm reading the existing system code. I don't know what does this symbol means <strong>&lt;></strong> in Query Builder. </p>
  
  <p>Here is the sample code:</p>
  
  <pre><code>$builder = DB::table('product');
  
  if (isset($product-&gt;type)) {
          $builder-&gt;where('product.type', '&lt;&gt;', $product-&gt;type);
  }
  </code></pre>
  
  <p>Thanks!</p>