As character names:

U+03C6 GREEK SMALL LETTER PHI character (φ)

As raw characters:

φ

As a string of HTML entities:

φ

Decoder output:

Byte number 1 is decimal 207, hex 0xCF, octal \317, binary 11001111
This is the first byte of a 2 byte sequence.

Byte number 2 is decimal 134, hex 0x86, octal \206, binary 10000110
This is continuation byte 1, expecting 0 more.

U+03C6	GREEK SMALL LETTER PHI
	* the ordinary Greek letter, showing considerable glyph variation
	* in mathematical contexts, the loopy glyph is preferred, to contrast with 03D5
	x (latin small letter phi - 0278)
	x (greek phi symbol - 03D5)