PHP 8.1 - guide with PDO prepared statements scenarios on specific character encodings
This might be a silly question, but I am working with an scenario with PDO prepared statements in PHP 8.1 when dealing with specific character encodings... When inserting data that includes special characters (like emojis or accented letters), I get the following behavior message: `SQLSTATE[22007]: Invalid datetime format: 1292 Incorrect date value: '2023-07-30 12:34:56 đ'`. I've ensured that my MySQL database is set to use `utf8mb4`, which should support these characters. Here is a sample of my code: ```php $dsn = 'mysql:host=localhost;dbname=test_db;charset=utf8mb4'; $username = 'root'; $password = 'password'; try { $pdo = new PDO($dsn, $username, $password); $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $stmt = $pdo->prepare('INSERT INTO users (name, created_at) VALUES (:name, NOW())'); $stmt->bindParam(':name', $name); $name = 'John Doe đ'; // This causes the behavior $stmt->execute(); } catch (PDOException $e) { echo 'Database behavior: ' . $e->getMessage(); } ``` I've also checked the database collation and confirmed it is set to `utf8mb4_unicode_ci`. I tried changing the connection charset to `utf8` but that does not support the emojis. Additionally, when I run a simple query without prepared statements, the data is inserted correctly without issues. What could be going wrong with the prepared statement? Is there a specific configuration or practice I might be missing? Any help would be greatly appreciated! Thanks in advance! For reference, this is a production mobile app.