Undefined Character (U+FF00)

Block:	Halfwidth and Fullwidth Forms, U+FF00 - U+FFEF^[1]
Plane:	Basic Multilingual Plane, U+0000 - U+FFFF^[1]
HTML Entity:	`＀` `＀`
UTF-8 Encoding:	`0xEF 0xBC 0x80`
UTF-16 Encoding:	`0xFF00`
UTF-32 Encoding:	`0x0000FF00`

References