unable to extract meta keyword value from website using get_meta_tags() 
<p>for example</p>

<pre><code>$all_meta=get_meta_tags($website_name);
$keyword_meta=$all_meta['keywords'];
print_r($all_meta);
</code></pre>

<p><code>print_r($all_meta)</code> only returns keywords from web page containing exactly the word 'keywords'...But few web-pages contain meta information in 'Keywords'...Can u tell me how to extract keywords which is independent of case?</p>

<hr>

<p>take case of website-"http://www.microsoft.com"</p>

<p>$all_meta=get_meta_tags("www.microsoft.com");
$keyword_meta=$all_meta['Keywords'];<br>
$keyword_meta1=$all_meta['keywords'];</p>

<p>print_r($keyword_meta);                    //shows error</p>

<p>print_r($keyword_meta1);                   /*displays Microsoft, product, support, help, *training, Office, Windows, software, download, trial, preview, demo,  business, security, *update, free, computer, PC, server, search, download, install, news
*/                                         </p>

<p>so how to make it run for case-insensitive keys-'keywords' or 'Keywords' ??</p>
