ysr5

what about this

you replace the output to just have the video id.

// delete youtube from output
str_replace("youtube","",$yourOutputShownOnYourSide);

// you will get something like "[ yu44JRTIxSQ]"
str_replace("[","",$yourOutputShownOnYourSide);

// you will get something like " yu44JRTIxSQ]"
str_replace("]","",$yourOutputShownOnYourSide);

// you will get something like " yu44JRTIxSQ"
trim($yourOutputShownOnYourSide);

// you will get something like "yu44JRTIxSQ"

than you can create a link to that video or embed the vid
for link:

// echo link
echo "https://www.youtube.com/watch?v=".$yourOutputShownOnYourSide;

// echo embed
echo "<iframe class=\"youtube-player\" type=\"text/html\" width=\"640\" height=\"385\" src=\"https://www.youtube.com/embed/".$yourOutputShownOnYourSide."\" frameborder=\"0\">
</iframe>";

(not tested the code)

what about this:

<?php
if ( is_category( 'wordpress' ) ) {
$imagePath = 'pathToWorpressImage.png';
}
?>
<img src="<?php echo §imagePath;?>" ...>

you could create a category array with wp_list_categories(); and identify with is_category(); in which category you are and generate a $imagePath you want to display belonging to the different categories.

nobody? ??