PHP/MySQL encoding problems. � instead of certain characters

Question

I have come across some problems when inputting certain characters into my mysql database using php. What I am doing is submitting user inputted text to a database. I cannot

Answer 1

As mentioned by others, you need to convert to UTF8 from end to end if you want to support "special" characters. This means your web page, PHP, mysql connection and mysql table. The web page is fairly simple, just use the meta tag for UTF8. Ideally your headers would say UTF8 also.

Set your PHP to use UTF8. Things would probably work anyway, but it's a good measure to do this:

mb_internal_encoding('UTF-8');
mb_http_output('UTF-8');
mb_http_input('UTF-8');

For mysql, you want to convert your table to UTF8, no need to export/import.

ALTER TABLE table_name CONVERT TO CHARACTER SET utf8

You can, and should, configure mysql to default utf8. But you can also run the query:

 SET NAMES UTF8

as the first query after establishing a connection and that will "convert" your database connection to UTF8.

That should solve all your character display problems.