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Please suggest me PHP regex for preg_replace to remove just all the attributes from HTML tags except <a> tag.

I tried already:preg_replace("/<([a-z][a-z0-9]*)[^>]*?(\/?)>/i",'<$1$2>',$htmltext);

It works fine for all the HTML tags but for <a> tag it removes href, title and target attributes.

Please suggest me the required changes in above regex or please share the working one.

Thanks in advance.

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    inb4 THE PONY HE COMES. Commented Oct 17, 2013 at 10:43
  • @Ben Fortune - what was that? Commented Oct 17, 2013 at 11:04
  • stackoverflow.com/a/1732454/2615209 Commented Oct 17, 2013 at 11:14

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to remove all the tags from HTML tags except <a> tag.

No need of regex, you can just use strip_tags function:

$html = strip_tags($html, '<a>');

UPDATE: preg_replace to remove just all the attributes from HTML tags except from <a>. You can use this negative lookahead based regex:

$htmltext = preg_replace("~<(?!a\s)([a-z][a-z0-9]*)[^>]*?(/?)>~i",'<$1$2>', $htmltext);
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this is removing all the tags, except <a> tag. I need to keep all the tags with removed atributes. e.g.: <span style="float:left;"> to just <span>. The regex I have given above works fine, but if tag is <a href="blah blah url"> becomes <a> so I need a solution to prevent this <a href="blah blah url"> tag and it's attributes as is.

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