Look for charset collation latin1_general_ci, replace latin1 to utf8.Open it up in UTF-8 capable text editor, make sure they look correct.There is a standard way to deal with your problem and gobbled data: In phpMyAdmin, bytes get read and displayed as ASCII characters, that's the garbage text you seem.Ĭountless hours had been spend years ago (2005?) when MySQL 4.0 went obsolete, in many parts of Asia. mysql-cli and php-mod-mysql), characters get displayed correctly since they are being transfer to/from database as bytes. What's the charset collation settings for you database? I am pretty sure you are using latin1, which is MySQL name for ASCII, to store the UTF-8 text in 'bytes', into the database.įor charset-insensitive clients (i.e. Your MySQL is > 4.1, that means it's charset-aware. Only convert database to real UTF-8 if you are sure the web app can read them correctly. My suggestion is not to brother if the web app you are using is too old and not supported. May I ask: is MySQL > version 4.1? What web app is the database for? phpBB? Was the database migrated from an older version of the web app, or an older version of MySQL? However, convert the database into correct charset often breaks web apps that does not aware charset-related feature provided by MySQL. In order to correctly display the characters correctly in phpMyAdmin, the data must be correctly stored in the database. Your problem is most likely due to the fact that the database does not store the correct UTF-8 strings at first place. Unfortunately, phpMyAdmin is one of the first php application that talk to MySQL about charset correctly. I am going to open a bounty for this question as I really want to figure this out. I am using Zend Framework to insert data into the database. I have added the lines to my.cnf and restarted mysql but there is no change. The character set is set correctly for the database and all tables ('latin' is not found anywhere in the file) CREATE DATABASE `japanese` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci (However, doing a mysqldump of the database also shows garbled characters). The characters are still garbled even though the encoding is set to UTF-8. I have tried an export of my database and opened up the. The character encoding on the HTML page is set to UTF-8. How can I get phpMyAdmin to display the characters in Japanese? However, when viewing the table data in phpMyAdmin, I just see garbage text. When pulling data out of the database and displaying it on a webpage, I see it properly. from the mysql command line, I properly see the Japanese characters. But the correct solution will depend on your actual data set and the needs of your application.I have my database properly set to UTF-8 and am dealing with a database containing Japanese characters. For Swedish data, an alternative may be utf8mb4_sv_0900_ai_ci, which share many properties with latin1_swedish_ci. In this situation, you must consider which collation you really want. If this column is changed to utf8mb4 which has the default collation utf8mb4_0900_ai_ci in MySQL 8.0, unique constraint may be broken, since in this collation, ‘a’=’å’=’ä’ and ‘o’=ö’. The simplest example is if you have create a character column with default settings in MySQL 5.7, this column will have the character set latin1 which again has the default collation latin1_swedish_ci. Since collations are different, changing the character set of a table may break unique constraints (UNIQUE or PRIMARY KEY etc.). For large data volumes, this may take considerable time and the table will be locked during index generation. When collation of a column changes, even if the character set stays the same, indices will be regenerated. So if you have key varchar/char columns with lengths larger than 767 characters you will have to consider either to shorten the length, change to TEXT or change the InnoDB settings. This value is dependent upon InnoDB row format and innodb_page_size, so you will need to check the documentation to figure out what your limit is if you don’t run with default settings.Ī utf8mb4 character use 1-4 bytes, which means that the maximum length of a char/varchar column that is a key, will be 767 characters. InnoDB tables have a max key length of 3072 bytes. Then you need to have a look at some properties of these columns. So, to take advantage of the new collations for existing applications that have upgraded from 5.7, one need to do a migration project.įirst, you need to analyze your schemata and figure out which columns should be in utf8mb4. Col2 VARCHAR ( 100 ) COLLATE AS utf8mb4_sv_0900_ai_ciĬol1 get the collation utf8mb4_0900_ai_ci, and col2 get the character set utf8mb4.
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