Why Does My New CodeIgniter Script Display Corrupted Persian Characters While the Old Script Doesn't?

Strange Character Encoding in Database: Old Script Decoding, New Script Failing

Problem Statement:

A website migration from an older script to a new CodeIgniter-based one is encountering issues with character encoding. The old script can display Persian characters stored in the database, while the new script shows corrupted text.

Analysis:

The database tables and columns are configured with a collate of utf8_persian_ci. The new script also uses UTF-8 as its charset and collate. The issue stems from the manner in which characters were originally stored in the database when using the old TubaDBEngine.

Old Script Behavior:

When Persian characters were inserted into the database using TubaDBEngine, they were stored not in UTF-8 but in a different encoding, which resulted in the display of characters such as "عمران" in the database. However, the old script was able to decode and display these characters correctly.

New Script Issue:

The new script, while configured correctly for UTF-8, cannot decode the characters that were originally stored in the database using TubaDBEngine's encoding. As a result, the new script shows corrupted text when fetching data.

Solution:

1. Convert the data stored in the database into UTF-8 using a query such as:

SELECT CONVERT(BINARY CONVERT(fName USING latin1) USING utf8) FROM tnewsgroups

2. Update the data in the database using an UPDATE statement:

UPDATE tnewsgroups SET fName = CONVERT(BINARY CONVERT(fName USING latin1) USING utf8)

After the data conversion, the new script should be able to fetch and display the Persian characters correctly.

The above is the detailed content of Why Does My New CodeIgniter Script Display Corrupted Persian Characters While the Old Script Doesn't?. For more information, please follow other related articles on the PHP Chinese website!