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	<title>isUrl() - Open Power Template</title>
	
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		<h1>Open Power Template 2.0</h1>
		<h2>isUrl()</h2>
		<p class="generated">@ 02.09.2010</p>
		<p class="location"><a href="index.html"><strong>User manual</strong></a> &raquo; <a href="syntax.html">Template syntax</a> &raquo; <a href="syntax.functions.html">Function reference</a> &raquo; <a href="syntax.functions.is-url.html">isUrl()</a></p>
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	<div id="content"><dl class="location"><dt><a href="syntax.functions.html">3.6. Function reference</a><br/>3.6.17. isUrl()</dt><dd class="prev">3.6.16. isImage()<br/><a href="syntax.functions.is-image.html">&laquo; Previous</a></dd><dd class="next">3.6.18. lower()<br/><a href="syntax.functions.lower.html">Next &raquo;</a></dd></dl>	<h1>3.6.17. isUrl()</h1><div class="tf_reference"><table><tr><th>Reference</th><td><code>boolean isUrl(string $text)</code></td></tr></table><hr/></div><p>Returns <strong>true</strong>, if the <code>$text</code> is a valid URL. The code below shows, how to use this function to make the user name an URL to his website in case he defined its address in the profile.</p>

<pre class="xml"><span style="color: #009900;"><span style="color: #000000; font-weight: bold;">&lt;a</span> <span style="color: #000066;">parse:href</span>=<span style="color: #ff0000;">&quot;$user.www&quot;</span> <span style="color: #000066;">opt:on</span>=<span style="color: #ff0000;">&quot;isUrl($user.www)&quot;</span><span style="color: #000000; font-weight: bold;">&gt;</span></span>{$user.nickname}<span style="color: #009900;"><span style="color: #000000; font-weight: bold;">&lt;/p<span style="color: #000000; font-weight: bold;">&gt;</span></span></span></pre>

<blockquote class="information">
  <p>The function <strong>does not accept</strong> malformed URL-s or URL parts, for example with removed protocol
  that are usually accepted by the current browsers. In other words, the string <code>www.example.com</code>
  is not accepted as a valid URL, but <code>http://www.example.com</code> - is.</p>
</blockquote>
<dl class="location location-bottom"><dt>3.6.17. isUrl()<br/><a href="syntax.functions.html">3.6. Function reference</a></dt><dd class="prev"><a href="syntax.functions.is-image.html">&laquo; Previous</a><br/>3.6.16. isImage()</dd><dd class="next"><a href="syntax.functions.lower.html">Next &raquo;</a><br/>3.6.18. lower()</dd></dl>		</div>
	
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