php - character set conversion

Question

i wanna convert to original string of a€?Coola€ ..Origingal string is cool . (' is backquote)

Answer 1

It seems that you just forgot to specify the character encoding properly.

Because a€? is what you get when the character “ (U+201C) encoded in UTF-8 (0xE2809C) is interpreted with a single-byte character encoding like Windows-1252 (default character encoding in some browsers) where 0xE2, 0x80, and 0x9C represent the characters a, €, and ? respectively.

So just make sure to specify your character encoding properly. Or if you actually want to use Windows-1252 as your output character encoding, you can convert your UTF-8 data with mb_convert_encoding, iconv or similar functions.