title: Add a product note field in single product pages in Woocommerce
body: <p>I want create <strong>custom order note</strong> in <strong>single product</strong> detail page for user. This one can do using php without plugin. I have attached screenshot and site URL for reference. </p>
  
  <p>The have tried with this code in <code>function.php</code> its working on checkout page not in <strong>product detail</strong> page. Anyone help me to achieve this.</p>
  
  <pre><code>add_action('woocommerce_after_order_notes', 'customise_checkout_field');
  
      function customise_checkout_field($checkout)
      {
      echo '&lt;div id="customise_checkout_field"&gt;&lt;h2&gt;' . __('Heading') . '&lt;/h2&gt;';
      woocommerce_form_field('customised_field_name', array(
      'type' =&gt; 'text',
      'class' =&gt; array(
      'my-field-class form-row-wide'
      ) ,
      'label' =&gt; __('Customise Additional Field') ,
      'placeholder' =&gt; __('Guidence') ,
      'required' =&gt; true,
      ) , $checkout-&gt;get_value('customised_field_name'));
      echo '&lt;/div&gt;';
      }
  </code></pre>
  
  <p><a href="http://orderonline.my/glaireprints/" rel="nofollow noreferrer">website url</a></p>
  
  <p><a href="https://i.stack.imgur.com/B7V60.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/B7V60.png" alt="enter image description here"></a></p>