What are the potential issues with displaying special characters like ü,ö,ß,ä in PHP when retrieving data from a MySQL database?

When displaying special characters like ü,ö,ß,ä in PHP retrieved from a MySQL database, the main issue is character encoding mismatch. To solve this, you need to ensure that your PHP script, MySQL database, and HTML output are all using the same character encoding, typically UTF-8. 

// Set UTF-8 encoding for MySQL connection
$mysqli = new mysqli("localhost", "username", "password", "database");
$mysqli->set_charset("utf8");

// Set UTF-8 encoding for PHP script
header('Content-Type: text/html; charset=utf-8');

// Fetch data from MySQL database
$result = $mysqli->query("SELECT * FROM table");

// Display data with proper encoding
while($row = $result->fetch_assoc()) {
    echo htmlentities($row['column_name'], ENT_QUOTES, 'UTF-8');
}

Keywords

PHP MySQL special characters encoding UTF-8

Related Questions