You already know that when performing the search in WordPress, the URL becomes something with:
/?s=lorem+ipsum in the end.

An odd fact was that get_search_link() returns something like /search/lorem+ipsum. So if you’re using a theme that creates a link to the search results page you’ll receive a different URL compared to the one that you receive when performing an actual search (two pages at different URLs showing the exact same content is no good).

Therefore I created a small snippet that fixes this when inserted in the functions.php file from your theme – making get_search_link() return the exact same URL that one would receive when performing a search.


function simple_search_link($link)
{
$link = str_replace('/search/','/?s=',$link);
$link = rtrim($link, '/');
return $link;
}
add_filter('search_link','simple_search_link');


I’ve used the str-replace to replace the /search/ with /?s=, and the rtrim function to strip the trailing /.
Now the exact same URL is used for both the get_search_link as actual searches.

This would also mean a better performance if you’re using caching.

In case you have a website that uses dropdowns you probably noticed the dropdown panel might get under the flash media (like Youtube video embeds). The fix to this is to setup the wmode attribue to transparent… but how do we do it in WordPress?

Since WordPress 2.9 has enabled us to easily embed videos ( codex.wordpress.org/Embeds ), it also means we don’t have the ability to change the embed code (to add the wmode transparent for example), and that’s why we have to rely on applying a filter that does that for us.

Simply paste the following at the beginning of your theme’s functions.php (after <?php ), and the wmode attribute will be setup automatically:

function add_video_wmode_transparent($html, $url, $attr) {
   if (strpos($html, "<embed src=" ) !== false) {
    	return str_replace('</param><embed', '</param><param name="wmode" value="transparent"></param><embed wmode="transparent" ', $html);
   } else {
        return $html;
   }
}
add_filter('embed_oembed_html', 'add_video_wmode_transparent', 10, 3);

Update

As Theo pointed out, the videos can come in in iframes instead of object elements. To make the videos transparent in those cases as well, here’s the updated snippet:

function add_video_wmode_transparent($html, $url, $attr) {

if ( strpos( $html, "<embed src=" ) !== false )
   { return str_replace('</param><embed', '</param><param name="wmode" value="opaque"></param><embed wmode="opaque" ', $html); }
elseif ( strpos ( $html, 'feature=oembed' ) !== false )
   { return str_replace( 'feature=oembed', 'feature=oembed&wmode=opaque', $html ); }
else
   { return $html; }
}
add_filter( 'embed_oembed_html', 'add_video_wmode_transparent', 10, 3);

A demo video embedded using built-in oEmbed: