title: How to send and receive query string sent via anchor tag from one page to another
body: <p>I have this piece of code:</p>
  
  <pre><code>&lt;a href="update_product.php?product_id='&lt;?php echo $product_id; ?&gt;'"&gt;Update Product Info&lt;/a&gt;&lt;br&gt;&lt;br&gt;
  </code></pre>
  
  <p>I want to send <code>product_id=&lt;?php echo $productid;?&gt;</code> to another page-<code>update_product.php</code>.</p>