What are the potential pitfalls of using UTF-8 for handling languages like Russian, Japanese, and Chinese in PHP projects?

Potential pitfalls of using UTF-8 for handling languages like Russian, Japanese, and Chinese in PHP projects include issues with character encoding, string manipulation, and database interactions. To address these challenges, it is essential to set the correct UTF-8 encoding, use multibyte string functions, and ensure that the database connection is also configured for UTF-8. 

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

// Use multibyte string functions for handling UTF-8 strings
$text = 'Привет, こんにちは, 你好';
echo mb_strlen($text);

// Configure database connection for UTF-8
$pdo = new PDO('mysql:host=localhost;dbname=mydatabase', 'username', 'password', array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"));

Keywords

UTF-8 multibyte encoding mbstring character set

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