Remove all html tags from php string

Question

I want to display the first 110 characters of a database entry. Pretty easy so far:

<?php echo substr($row_get_Business['business_description'],0,110) . "..."; ?>

But the above entry has HTML code in it that's been entered by the client. So it displays:

<p class="Body1"><strong><span style="text-decoration: underline;">Ref no:</span></strong> 30001<strong></stro...

Obviously no good.

I just want to strip out all HTML code, so I need to remove everything between < and > from the db entry THEN display the first 100 chars.

Any ideas anyone?