note 94572 added to function.htmlentities

@ montana (Jul-2009): I think you're operating under a misunderstanding. It looks like you've saved your PHP source code (or are in some other way giving your input) in UTF-8 encoding, without telling htmlentities() that the input is in UTF-8. By default, htmlentities() assumes input is encoded in ISO-8859-1 (single byte, fixed-width character encoding). If you pass it "ñ" (ISO character 241), it returns &ntilde; just fine. If you pass it "ñ" (this is technically the 2-byte UTF-8 sequence representing ñ) and do not specify UTF-8 as the encoding to htmlentities(), it will return &Atilde;&plusmn;, because those are the corresponding entities for those ISO characters. Try specifying "UTF-8" as the input encoding, and it should work. If you are applying htmlentities() to form input, many browsers will default to posting in UTF-8, even if the character encoding of the site is ISO-8859-1. Other browsers will try to use the encoding of the page. Specify ACCEPT-CHARSET as UTF-8 in your FORM, and use utf8_encode() before processing to make sure everything works uniformly (input sanitation is _always_ a good idea.) Example proof of concept: <?php $ntilde = chr(241); //This = ñ in ISO-8859-1 $ntildeUTF = utf8_encode($ntilde); //This = ñ in ISO-8859-1, or ñ in UTF-8 echo htmlentities($ntilde); //returns "&ntilde;" echo htmlentities($ntilde, null, "UTF-8"); //returns "" (input is not a valid UTF-8 sequence) echo htmlentities($ntildeUTF); //returns "&Atilde;&plusmn;" because that's what the UTF-8 looks like in one-byte ASCII echo htmlentities($ntildeUTF, null, "UTF-8"); //returns "&ntilde;" as it should ?> ---- Server IP: 208.69.120.35 Probable Submitter: 143.44.175.254 ---- Manual Page -- http://www.php.net/manual/en/function.htmlentities.php Edit -- https://master.php.net/note/edit/94572 Del: integrated -- https://master.php.net/note/delete/94572/integrated Del: useless -- https://master.php.net/note/delete/94572/useless Del: bad code -- https://master.php.net/note/delete/94572/bad+code Del: spam -- https://master.php.net/note/delete/94572/spam Del: non-english -- https://master.php.net/note/delete/94572/non-english Del: in docs -- https://master.php.net/note/delete/94572/in+docs Del: other reasons-- https://master.php.net/note/delete/94572 Reject -- https://master.php.net/note/reject/94572 Search -- https://master.php.net/manage/user-notes.php