HEAD request in PHP to validate (network not syntax) URLs?
<p>Here is the <a href="http://php.net/manual/en/function.http-head.php" rel="nofollow">php.net listing</a> for http_head.</p>

<p>The function prototype is</p>

<pre><code>string http_head ( string $url [, array $options [, array &amp;$info ]] )
</code></pre>

<p>A list of <code>$options</code> is <a href="http://www.php.net/manual/en/http.request.options.php" rel="nofollow">here</a>.</p>

<p>I want to use this to validate that a set of URLs is valid.</p>

<p><code>[url1, url2, url3]</code></p>

<p>Are there any options that should be set?  Is any of the <code>$info</code> relevant to should I just make sure that false is not returned instead of a string?</p>
