note 70862 added to function.strip-tags

A different approach to cleaning up HTML would be to first escape all unsafe characters: & to &amp; < to &lt; > to &gt; then to unescape matching pairs of tags back (e.g. "&lt;b&gt;hello&lt;/b&gt;" => "<b>hello</b>"), if it is identified safe. This backwards-approach should be safer because if a tag is not identified correctly, it is, at the end, in an escaped state. So if a user enters invalid html, or tags that are unsupported or unwanted, they are shown in plain text, and not stripped away. This is good, because the characters "<" and ">" might have been used in a different way (e.g. to make a text arrow: "a <=> b"). This is the case in most forums (apart from the fact that they use "[tag]"-tags instead of "<tag>"-tags) ---- Server IP: 194.153.94.10 Probable Submitter: 195.176.0.51 ---- Manual Page -- http://www.php.net/manual/en/function.strip-tags.php Edit -- https://master.php.net/note/edit/70862 Del: integrated -- https://master.php.net/note/delete/70862/integrated Del: useless -- https://master.php.net/note/delete/70862/useless Del: bad code -- https://master.php.net/note/delete/70862/bad+code Del: spam -- https://master.php.net/note/delete/70862/spam Del: non-english -- https://master.php.net/note/delete/70862/non-english Del: in docs -- https://master.php.net/note/delete/70862/in+docs Del: other reasons-- https://master.php.net/note/delete/70862 Reject -- https://master.php.net/note/reject/70862 Search -- https://master.php.net/manage/user-notes.php