What are the potential risks of using outdated MySQL functions instead of PDO in PHP?

Using outdated MySQL functions instead of PDO in PHP can lead to security vulnerabilities such as SQL injection attacks. PDO provides a more secure way to interact with databases by using prepared statements and parameterized queries. To mitigate this risk, it is recommended to switch to PDO for database operations in PHP. 

// Using PDO for connecting to a MySQL database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "Connected successfully"; 
} catch(PDOException $e) {
    echo "Connection failed: " . $e->getMessage();
}

Keywords

MySQL functions PDO outdated security vulnerabilities data integrity

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