note 85294 added to function.mb-detect-encoding

Function to detect UTF-8, when mb_detect_encoding is not available it may be useful. <?php function is_utf8($str) { $c=0; $b=0; $bits=0; $len=strlen($str); for($i=0; $i<$len; $i++){ $c=ord($str[$i]); if($c > 128){ if(($c >= 254)) return false; elseif($c >= 252) $bits=6; elseif($c >= 248) $bits=5; elseif($c >= 240) $bits=4; elseif($c >= 224) $bits=3; elseif($c >= 192) $bits=2; else return false; if(($i+$bits) > $len) return false; while($bits > 1){ $i++; $b=ord($str[$i]); if($b < 128 || $b > 191) return false; $bits--; } } } return true; } ?> ---- Server IP: 190.2.55.3 Probable Submitter: 190.226.121.36 ---- Manual Page -- http://www.php.net/manual/en/function.mb-detect-encoding.php Edit -- https://master.php.net/note/edit/85294 Del: integrated -- https://master.php.net/note/delete/85294/integrated Del: useless -- https://master.php.net/note/delete/85294/useless Del: bad code -- https://master.php.net/note/delete/85294/bad+code Del: spam -- https://master.php.net/note/delete/85294/spam Del: non-english -- https://master.php.net/note/delete/85294/non-english Del: in docs -- https://master.php.net/note/delete/85294/in+docs Del: other reasons-- https://master.php.net/note/delete/85294 Reject -- https://master.php.net/note/reject/85294 Search -- https://master.php.net/manage/user-notes.php