php Programming Glossary: xc0

UTF8 workflow PHP, MySQL summarized [closed]

http://stackoverflow.com/questions/11013537/utf8-workflow-php-mysql-summarized

' x00 x08 x10 x0B x0C x0E x19 x7F ^ x00 x7F x80 xBF xC0 xC1 xF0 xFF x80 xBF xC2 xDF x80 xBF x80 xBF 2 xE0 xEF x80 xBF..

http://stackoverflow.com/questions/11709410/regex-to-detect-invalid-utf-8-string

it doesn't rely on PCRE_UTF8 to be compiled in. regex ' xC0 xC1 # Invalid UTF 8 Bytes xF5 xFF # Invalid UTF 8 Bytes xE0.. of text. Overlong encoding of code point 0 text chr 0xC0 . chr 0x80 var_dump preg_match regex text int 1 Overlong encoding..

Remove non-utf8 characters from string

http://stackoverflow.com/questions/1401317/remove-non-utf8-characters-from-string

regex 'END' x00 x7F # single byte sequences 0xxxxxxx xC0 xDF x80 xBF # double byte sequences 110xxxxx 10xxxxxx xE0 xEF.. regex 'END' x00 x7F # single byte sequences 0xxxxxxx xC0 xDF x80 xBF # double byte sequences 110xxxxx 10xxxxxx xE0 xEF.. times x80 xBF # invalid byte in range 10000000 10111111 xC0 xFF # invalid byte in range 11000000 11111111 x END function..

Can str_replace be safely used on a UTF-8 encoded string if it's only given valid UTF-8 encoded strings as arguments?

http://stackoverflow.com/questions/2652193/can-str-replace-be-safely-used-on-a-utf-8-encoded-string-if-its-only-given-vali

a valid character always begins with a byte in the range xC0 xFF . This byte may not appear anywhere else in the sequence..

Multi-byte safe wordwrap() function for UTF-8

http://stackoverflow.com/questions/3825226/multi-byte-safe-wordwrap-function-for-utf-8

str width break cut false if cut regexp '#^ x00 x7F xC0 xFF x80 xBF '. width.' b#U' else regexp '#^ x00 x7F xC0 xFF.. xC0 xFF x80 xBF '. width.' b#U' else regexp '#^ x00 x7F xC0 xFF x80 xBF '. width.' #' if function_exists 'mb_strlen' str_len.. str 'UTF 8' else str_len preg_match_all ' x00 x7F xC0 xFD ' str var_empty while_what ceil str_len width i 1 return..