PHP clears HTML tags but retains some of the labels

A lot of the time we just clear the HTML tag but always want to keep some of the tags

Implemented in ASP language

code is as follows	copy code
str= "<a" href= "" a.htm "" >a.htm</a><div>afefe</div>feaa<b>bbb</b>  <a href= Http://www.111cn.net id= "GGG" ">ggg</a><abbr> test </abbr>" &NBSP; Set re=new regexp       re. IgnoreCase =true      re. global=true      re. Pattern= "(< (?!) /? (a|p|b) (\s|>)) [^>]*>) "      str=re.replace (str," ")        Response. Write str

It can also be implemented in other languages.

The following are implemented in the PHP language:

The code is as follows	Copy Code
$str = ' <a href= ' a.htm ' >a.htm</a><div>afefe</div>feaa<b>bbb</b><a href=http ://www.baidu.com id= "GGG" >ggg</a><abbr> test </abbr> '; echo preg_replace ('/< (?! ＼/? (a|p|b) (\s|\>)) [^>]*>)/', ', $str); ?>

Of course PHP has a simpler way to do this:

The code is as follows	Copy Code
$str = ' <a href= ' a.htm ' >a.htm</a><div>afefe</div>feaa<b>bbb</b

or write that.

code is as follows	copy code
/** * @para M $content * @return Mixed * Filter a label reserved content */ Public Function delete_tags_a ($content) { $content = Preg_rep Lace ("#<a[^>]*>" (. *?) </a> #is "," $ ", $content); return $content; }