Is using the @ symbol before MySQL queries a recommended practice in PHP, and what potential pitfalls or drawbacks could it have?

Using the @ symbol before MySQL queries in PHP is not a recommended practice as it suppresses error messages and can make debugging more difficult. It is better to handle errors using proper error handling techniques like try-catch blocks or checking for errors after executing the query.

// Example of proper error handling for MySQL queries in PHP
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

$sql = "SELECT * FROM table_name";
$result = $conn->query($sql);

if ($result === false) {
    die("Error executing query: " . $conn->error);
}

// Process the query result here

$conn->close();