Need to add text in PHP function

PHP
1

I know next to nothing about PHP, but usually I get by with some editing. But not today!

I have this code:

$small_prev_image = post_thumb($post->ID, array('size'=> array('M','_external'),
													 'wh' => $k_option['custom']['imgSize']['M'],
													 'img_attr' => array('class'=>'item_small')	
													));

‘_external’ is a URL. but I need to add some code before and after the URL, but can’t figure out how to do this… Can anyone help me out?

2

Yes, it gets displayed like this:

echo "<div class='gallery_entry gallery_entry_$loopcount $last'>";
	echo "<div class='gallery_inner'>";
	echo "<a class='preloading gallery_image' href='".$imagelink."'>";
	if($featured == 'yes') echo "<span class='featured_entry'></span>";
	echo $small_prev_image;
	echo $big_prev_image;
	echo "</a>";
	echo "<span class='comment_link'>";
	comments_popup_link(__('0','expose'), __('1','expose'), __('%','expose'));
	echo "</span>";
	if(function_exists('the_ratings')) the_ratings();		
	echo "<div class='gallery_excerpt'>";
	echo get_the_excerpt();
	echo "</div>";
	echo "</div>";
	echo "<h3><a href='".$titlelink."'>".get_the_title()."</a></h3>";
	echo "</div>";

the _external will display the URL. I want to use a thumnail service. so if _external is sitepoint.com, it will need to become something like http://thumbshots.com?url=sitepoint.com

3

What code you want to append before and after the URL and what is the meaning of adding code before and after a URL? Can you elaborate your requirement with sample value?