Php convert string to utf8

- Php convert string to utf8mb4
- Php convert string to utf8_general_ci
- Php convert string to utf8 encoding
- Php convert string utf 8 to ascii
- Php convert string encoding to utf 8
- Php convert string charset to utf 8
- Php convert string ansi to utf 8
- Php convert string utf 8 to iso 8859 1
- Php convert string from utf8 to iso 8859 1
- Php convert unicode string to utf 8