How can PHP developers ensure proper error handling and data validation when interacting with MySQL databases for data storage?

PHP developers can ensure proper error handling and data validation when interacting with MySQL databases by using prepared statements to prevent SQL injection attacks, using try-catch blocks to handle exceptions, and validating user input before executing queries. This helps to ensure that data is securely stored in the database and that potential errors are caught and handled appropriately. 

// Establish a connection to the MySQL database
$pdo = new PDO("mysql:host=localhost;dbname=mydatabase", "username", "password");

// Prepare a SQL statement with placeholders for data
$stmt = $pdo->prepare("INSERT INTO users (username, email) VALUES (:username, :email)");

// Bind parameters to the placeholders
$stmt->bindParam(':username', $username);
$stmt->bindParam(':email', $email);

// Validate user input before executing the query
if (!empty($username) && !empty($email)) {
    // Execute the query
    $stmt->execute();
} else {
    echo "Invalid input data";
}

Keywords

PHP MySQL error handling data validation data storage

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