PHP htmlentities无法正常工作？ 输出是？

Question

I am trying to store some data in my MySQL database. When I try to input special characters and even foreign characters like ø or звяф, I want them to be stored as html entities (like ő)

I thought it's supersimple, just use htmlentities(), but when I store data, I am getting nothing but ???? in the database.

Any ideas?

Here is the code I use right now:

$sqlOrder="INSERT INTO data (
        bad, cname, lor
    )
    VALUES (
        '".htmlentities($b->getBad(), ENT_COMPAT, 'UTF-8')."', '".htmlentities($b->getCName(), ENT_COMPAT, 'UTF-8')."', '".htmlentities($b->getLor(), ENT_COMPAT, 'UTF-8')."'
    )";

As said, the result in the database is ????????? for any special characters such as кршуцкыя or æåø.

Answer 1

What is the data collation of your database? By default, most MySQL installs set latin1_swedish_ci instead of utf8_general_ci for newly created databases.

Change the collation of the database & try again.

ALTER DATABASE [name of your database] CHARACTER SET utf8;

If this is a specific table, the collation can be changed as so:

ALTER TABLE [name of your table] CONVERT TO CHARACTER SET utf8;

And if it is a specific column in a table:

ALTER TABLE [name of your table] MODIFY [name of your column] [other settings] CHARACTER SET utf8 COLLATE utf8_general_ci;

Or perhaps you could export the current database, create a new database with this command & reimport the data:

CREATE DATABASE [name of your database] CHARACTER SET utf8 COLLATE utf8_general_ci;