php - Codeigniter data to csv character encoding issue with Arabic - Stack Overflow
Character sets: ISO-8859-6 (Arabic)
Choosing a Character Set
Visual Studio Text Editor doesn't render UTF characters - Microsoft Q&A
Charset
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SOLVED: The character encoding UTF-8 is currently used in 90% of computer systems on the Internet. UTF-8 is capable of representing characters of all languages with backward compatibility with the 7-bit ASCII