regex replacing tags with a specific class

karlito

I'm trying to swap all instances of:

<span class="gallery">
<img src="image1.jpg" alt="image1" />
<img src="image2.jpg" alt="image2" />
<img src="image3.jpg" alt="image3" />
<img src="image4.jpg" alt="image4" />
</span>

with another HTML tag altogether, keeping the content between the tags (in my example, the images), so that it becomes something like:

<div id="mycarousel">
<ul>
<li><img src="image1.jpg" alt="image1" /></li>
<li><img src="image2.jpg" alt="image2" /></li>
<li><img src="image3.jpg" alt="image3" /></li>
<li><img src="image4.jpg" alt="image4" /></li>
</ul>
</div>

So far, I've managed this:

$content = preg_replace('#<span[^>]*>(.*?)</span>#siU', "swapped", $content);

which replaces <span> tags, including their content and their ending tags with "swapped".

Unfortunately, I've only been able to get the CMS to output the initial code so I've run out of options, and now I need to use JQuery to turn the list of images into a carousel which is easy enough. It's not a solution I'm happy with, as ideally the CMS would output the correct code, but I've been working at this for hours now, and I'm on a tight deadline to get this out for a client.

Please, any help would be greatly appreciated.

NogDog

$content = preg_replace_callback
(
   '#<span\s[^>]*class=[\'"]gallery[\'"][^>]*>(.*)</span>#isU',
   create_function
   (
      '$matches',
      'return "<div id=\"carousel\">\n<ul>\n".preg_replace(\'#(<img\s[^>]*/>)#i\', \'<li>$1</li>\', $matches[1])."</ul>\n</div>\n";'
   ),
   $content
);

karlito

You sir, appear to be a genius.

I've been using PHP for years and I've never even come across 'create_function'. Introducing me to that alone is worthy of great appreciation, but you also appear to have solved my problem and I honestly didn't think anyone would respond.

I will let you know how I get on as soon as I get back to work.

Again, many thanks