php Programming Glossary: xf0

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

Bytes xE0 x80 x9F # Overlong encoding of prior code point xF0 x80 x8F # Overlong encoding of prior code point xC2 xDF x80.. Start xE0 xEF x80 xBF 2 # Invalid UTF 8 Sequence Start xF0 xF4 x80 xBF 3 # Invalid UTF 8 Sequence Start x0 x7F xF5 xFF.. UTF 8 Sequence Middle xC2 xDF xE0 xEF xE0 xEF x80 xBF xF0 xF4 xF0 xF4 x80 xBF xF0 xF4 x80 xBF 2 x80 xBF # Overlong Sequence..

Remove non-utf8 characters from string

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

xEF x80 xBF 2 # triple byte sequences 1110xxxx 10xxxxxx 2 xF0 xF7 x80 xBF 3 # quadruple byte sequence 11110xxx 10xxxxxx 3.. xEF x80 xBF 2 # triple byte sequences 1110xxxx 10xxxxxx 2 xF0 xF7 x80 xBF 3 # quadruple byte sequence 11110xxx 10xxxxxx 3..

Replacing invalid UTF-8 characters by question marks, mbstring.substitute_character seems ignored

http://stackoverflow.com/questions/8215050/replacing-invalid-utf-8-characters-by-question-marks-mbstring-substitute-charac

xBF 2 # U 1000 U CFFF xED x80 x9F x80 xBF # U D000 U D7FF xF0 x90 xBF x80 xBF 2 # U 10000 U 3FFFF xF1 xF3 x80 xBF 3 # U 40000.. U 1000 U CFFF invalid xED x80 x9F # U D000 U D7FF invalid xF0 x90 xBF x80 xBF # U 10000 U 3FFFF invalid xF1 xF3 x80 xBF 1.. char_size 1 else valid true char_size 2 else if str pos xF0 left xE0 str pos xA0 x80 right xED str pos x9F xBF if isset..