title: Create line break in WhatsApp message
body: <p>I have been working on WhatsApp sharing message using:</p>
  
  <p><strong>whatsapp-button.js</strong></p>
  
  <pre><code>$_u.="Product Name:".$_productName."\n";
  
  $_u.="Sku:".$_productSku."\n";
  
  &lt;a href="whatsapp://send" data-text="&lt;?php echo nl2br($_u); ?&gt;" data-href="" class="wa_btn &lt;?php echo $buttonsize; ?&gt;" style="display:none"&gt;Share&lt;/a&gt;
  </code></pre>
  
  <p>How to add a line break:</p>
  
  <p>I have tried <code>\n</code>, <code>\r\n</code>, <code>PHP_EOL</code>, and <code>%0D%0A</code>, but it just displays as text.</p>