Standard ASCII"Hello Double" vs. 'Hello single' vs. it'sHTML

named character entity references: “, ”, ‘, and ’.“Hello Double” vs. ‘Hello single’ vs. it’s

HTML numeric (decimal) character entities for standard values: “, ”, ‘, and ’.“Hello Double” vs. ‘Hello single’ vs. it’s

HTML numeric (hexadecimal) character entities for standard values: “, ”, ‘, and ’.“Hello Double” vs. ‘Hello single’ vs. it’s

Embedded UTF-8 Encoding“Hello double” vs. ‘Hello single’ vs. it’s

Microsoft Non-standard Approach (0x93..0x94, 0x91..0x92); embedded�Hello Double� vs. �Hello single� vs. it�s

Microsoft Non-standard Approach; as decimal numeric character entity (“, ”, etc); charset=utf-8“Hello Double” vs. ‘Hello single’ vs. it’s