php code to display none?
<p>I'm sure this is fairly simple but I really don't get php is there a way to have the below code to display none if there's no url details entered?</p>

<pre><code>    &lt;div class="details"&gt;       
        &lt;h3&gt;web&lt;/h3&gt;
        &lt;div&gt;URL: &lt;span&gt;&lt;a href="&lt;?=$website_url?&gt;"&gt;&lt;?=$website_url?&gt;&lt;/a&gt;&lt;/span&gt;&lt;/div&gt;
    &lt;/div&gt;
</code></pre>

<p>Thanks</p>
