What are common pitfalls when dealing with special characters in PHP applications, despite using UTF-8 encoding?
Common pitfalls when dealing with special characters in PHP applications, despite using UTF-8 encoding, include mishandling character encoding conversions, incorrect string length calculations, and improper database configurations. To avoid these issues, ensure that your PHP files are saved with UTF-8 encoding, set the character encoding in your HTML meta tags, and configure your database connection to use UTF-8.
// Set UTF-8 encoding in PHP
header('Content-Type: text/html; charset=utf-8');
mb_internal_encoding('UTF-8');
// Set UTF-8 encoding in HTML meta tags
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
// Configure database connection to use UTF-8
$pdo = new PDO('mysql:host=localhost;dbname=mydatabase', 'username', 'password', array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"));