54     function utf8_isASCII($str)  argument
57         return Clean::isASCII($str);
64     function utf8_strip($str)  argument
67         return Clean::strip($str);
73     function utf8_check($str)  argument
76         return Clean::isUtf8($str);
91     function utf8_strlen($str)  argument
94         return PhpString::strlen($str);
100     function utf8_substr($str, $offset, $length = null)  argument
103         return PhpString::substr($str, $offset, $length);
118     function utf8_ltrim($str, $charlist = '')  argument
121         return PhpString::ltrim($str, $charlist);
127     function utf8_rtrim($str, $charlist = '')  argument
130         return PhpString::rtrim($str, $charlist);
136     function utf8_trim($str, $charlist = '')  argument
139         return PhpString::trim($str, $charlist);
145     function utf8_strtolower($str)  argument
148         return PhpString::strtolower($str);
154     function utf8_strtoupper($str)  argument
157         return PhpString::strtoupper($str);
163     function utf8_ucfirst($str)  argument
166         return PhpString::ucfirst($str);
172     function utf8_ucwords($str)  argument
175         return PhpString::ucwords($str);
181     function utf8_deaccent($str, $case = 0)  argument
184         return Clean::deaccent($str, $case);
190     function utf8_romanize($str)  argument
193         return Clean::romanize($str);
199     function utf8_stripspecials($str, $repl = '', $additional = '')  argument
202         return Clean::stripspecials($str, $repl, $additional);
217     function utf8_tohtml($str, $all = false)  argument
220         return Conversion::toHtml($str, $all);
226     function utf8_unhtml($str, $enties = false)  argument
229         return Conversion::fromHtml($str, $enties);
235     function utf8_to_unicode($str, $strict = false)  argument
238         return Unicode::fromUtf8($str, $strict);
253     function utf8_to_utf16be($str, $bom = false)  argument
256         return Conversion::toUtf16be($str, $bom);
262     function utf16be_to_utf8($str)  argument
265         return Conversion::fromUtf16be($str);
271     function utf8_bad_replace($str, $replace = '')  argument
274         return Clean::replaceBadBytes($str, $replace);
280     function utf8_correctIdx($str, $i, $next = false)  argument
283         return Clean::correctIdx($str, $i, $next);