note 123735 added to function.trim

Beware with trimming apparently innocent characters. It is NOT a Unicode-safe function: <?php echo trim('≈ [Approximation sign]', '– [en-dash]'); // �� [Approximation sig ?> The en-dash here is breaking the Unicode characters. And also prevents the open-square-bracket from being seen as part of the characters to trim on the left side, letting it untouched in the resulting string. ---- Server IP: 208.43.231.9 Probable Submitter: 185.85.3.142 (proxied: 217.27.204.228) ---- Manual Page -- http://php.net/manual/en/function.trim.php Edit -- https://master.php.net/note/edit/123735 Del: integrated -- https://master.php.net/note/delete/123735/integrated Del: useless -- https://master.php.net/note/delete/123735/useless Del: bad code -- https://master.php.net/note/delete/123735/bad+code Del: spam -- https://master.php.net/note/delete/123735/spam Del: non-english -- https://master.php.net/note/delete/123735/non-english Del: in docs -- https://master.php.net/note/delete/123735/in+docs Del: other reasons-- https://master.php.net/note/delete/123735 Reject -- https://master.php.net/note/reject/123735 Search -- https://master.php.net/manage/user-notes.php