How to Solve the Issue of Inserting Chinese Characters into MySQL?

Can't Insert Chinese Character into MySQL

When attempting to insert Chinese characters into a MySQL database, you may encounter difficulties due to character set encoding mismatches. To resolve this problem, follow these steps:

Create the Table with UTF-8 Encoding

When creating the database table, specify the character set as UTF-8:

<code class="sql">CREATE TABLE table_name (
    ...
) CHARACTER SET = utf8;</code>

Use UTF-8 for Table Fields

When inserting Chinese characters into a table, specify the field's character set as UTF-8:

<code class="sql">ALTER TABLE table_name
MODIFY COLUMN field_name VARCHAR(255) CHARACTER SET utf8;</code>

Use UTF-8 for Database and Table

<code class="sql">ALTER DATABASE dbname CHARACTER SET = utf8;

ALTER TABLE table_name
DEFAULT CHARACTER SET = utf8;</code>

Advanced Methods for MySQL Older Versions

Set Connection Character Set

<code class="sql">SET CHARACTER SET utf8;</code>

Use SET NAMES

<code class="sql">SET NAMES 'utf8';</code>

Use mysql_set_charset() Function

<code class="php">mysql_set_charset('utf8', $link);</code>

Read More

Related Articles:

• [MySQL Character Sets and Collations](https://dev.mysql.com/doc/refman/8.0/en/charset-charsets.html)
• [How To Solve UTF-8 Character Encoding Issue in MySQL Database](https://www.digitizor.com/articles/how-to-solve-utf-8-character-encoding-issue-in-mysql-database/)

Additional Resources:

• [MySQL Character Encodings and Collations Documentation](https://www.mysql.com/support/documentation/1/character-sets-encodings.html)
• [Stack Overflow Thread](https://stackoverflow.com/questions/15259744/how-to-allow-mysql-to-store-utf8-character-set-properly)
• [PHP MySQL Tutorial](https://www.w3schools.com/php/php_mysql_intro.asp)

Detailed Code Sample

Here is a detailed code sample that demonstrates how to resolve the issue:

<code class="php"><?php $servername = "localhost";
$username = "root";
$password = "";
$dbname = "test";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);

// Set connection character set to UTF-8
$conn->set_charset("utf8");

// Create database and table with UTF-8 encoding
$conn->query("CREATE DATABASE IF NOT EXISTS mydb CHARACTER SET utf8");
$conn->query("CREATE TABLE IF NOT EXISTS mydb.mytable (id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(255) CHARACTER SET utf8)");

// Insert Chinese characters into the table
$sql = "INSERT INTO mydb.mytable (name) VALUES (?)";
$stmt = $conn->prepare($sql);
$stmt->bind_param("s", $name);
$name = "你好";
$stmt->execute();

// Close connection
$stmt->close();
$conn->close();

?></code>

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