mysql - 在 MySQL 中将字符转换为 UTF8（é 到 é）

Question

我有一个 MySQL 问题。除了我的数据库之外，我的整个网站都是 UTF8 格式的。我最近刚刚尝试使用各种命令将其转换为 UTF8，但主要问题仍然存在：

口音不起作用。而不是é，我有é。è 也一样，还有另一种奇怪的字符。

是否有一个简单的转换所有这些字符的方法，比如说 é，到 é，在基地？

多谢。

（顺便说一下，数据库在latin1）

Answer 1

在这种情况下，é被é解释为 LATIN1 并转换为 UTF-8。可能是您的数据库试图提供帮助并转换为不需要转换的 UTF-8。

您是否尝试过切换数据库表上的字符集？

Answer 2

你可以试试这个功能：

CREATE TABLE `utf8decodemap` (
  `id` INT(11) NOT NULL AUTO_INCREMENT,
  `encoded` VARCHAR(128) NOT NULL,
  `decoded` VARCHAR(128) NOT NULL,
  UNIQUE KEY urlcodemapUIdx1(encoded),
  PRIMARY KEY (`id`)  
);

INSERT INTO utf8decodemap (decoded,encoded) VALUES ("â","â");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("é","é");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("è","è");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("ê","ê");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("ë","ë");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("î","î");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("ï","ï");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("ô","ô");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("ö","ö");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("ù","ù");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("û","û");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("ü","ü");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("ç","ç");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("œ","Å?");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("€","â¬");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("°","°");
INSERT INTO utf8decodemap (decoded,encoded) VALUES ("à","Ã");

DELIMITER $$
CREATE FUNCTION `utf8decoder`(str VARCHAR(4096)) RETURNS VARCHAR(4096) DETERMINISTIC
BEGIN
               DECLARE X  INT;               
               DECLARE chr VARCHAR(256);
               DECLARE chrto VARCHAR(256);
               DECLARE result VARCHAR(4096);
               SET X = 1;
               WHILE X  <= (SELECT MAX(id) FROM utf8decodemap) DO
                   SET chr = (SELECT `encoded` FROM utf8decodemap WHERE id = X);
                   SET chrto = (SELECT `decoded` FROM utf8decodemap WHERE id = X);                
                           SET str = REPLACE(str,chr,chrto);
                           SET  X = X + 1;                           
               END WHILE;
               RETURN str;
       END$$

DELIMITER ; 

例如：从 MYtable 中选择 utf8decoder(MyCol)