How to Use mysqli::get_charset to Check If the Database Character Encoding Is Correct?

<?php
// This part is just an example and is not related to the main content.
echo "This is a PHP example program\n";
$time = date("Y-m-d H:i:s");
echo "Current time: $time\n";
<p>?></p>
<hr>
<?php
// Main content starts here
/*
Article title: How to use mysqli::get_charset to check if the database character encoding is correct?
*/
echo "<h1>How to use mysqli::get_charset to check if the database character encoding is correct?</h1>";

echo "<p>When using a MySQL database in PHP, it is essential to ensure that the character encoding of the database connection is correct. Incorrect character encoding may cause Chinese or other non-ASCII characters to display incorrectly. PHP provides the <code>mysqli::get_charset

"; echo "
3. Use the get_charset method to retrieve the character encoding information:
"; echo "

$charset = $mysqli->get_charset();
echo "Current database connection charset: " . $charset->charset;

The returned $charset->charset is the character encoding used by the current connection. For example, if it shows utf8mb4, it means the database connection is using UTF-8 encoding, which is suitable for storing most characters, including emojis.

Common Use Cases

"; echo "
• Check the connection encoding before inserting Chinese or multi-byte characters.
"; echo "
• When debugging character encoding issues, confirm that the client and database are using the same encoding.
"; echo "
• Ensure data consistency in multi-language websites.
"; echo "

Complete Example Code

$mysqli = new mysqli("localhost", "username", "password", "database");

if ($mysqli->connect_error) {
    die("Connection failed: " . $mysqli->connect_error);
}

$charset = $mysqli->get_charset();
echo "Current database connection charset: " . $charset->charset;

By following the above method, you can quickly check whether the character encoding of the database connection is correct, avoiding display issues caused by character encoding mismatches.

End of article example, the above content is for PHP practice purposes only.