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regex - PHP regular expression to remove tags in HTML document

Say I have the following text

..(content).............
<A HREF="http://foo.com/content" >blah blah blah </A>
...(continue content)...

I want to delete the link and I want to delete the tag (while keeping the text in between). How do I do this with a regular expression (since the URLs will all be different)

Much thanks

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This will remove all tags:

preg_replace("/<.*?>/", "", $string);

This will remove just the <a> tags:

preg_replace("/<\/?a(\s+.*?>|>)/", "", $string);

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