What are the potential pitfalls of using outdated PHP components like mysql_* in login forms?

Using outdated PHP components like mysql_* in login forms can pose security risks such as SQL injection attacks and lack of support for newer PHP versions. To mitigate these risks, it is recommended to switch to more secure alternatives like PDO or MySQLi for interacting with databases. 

// Using MySQLi to connect to the database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);

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

Keywords

mysql_* outdated security vulnerability SQL injection deprecated

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