How can the issue of SQL Injections be addressed in the PHP code snippet shared in the forum thread?

SQL Injections can be addressed in the PHP code snippet by using prepared statements with parameterized queries. This approach allows for the separation of SQL logic from user input, preventing malicious SQL injection attacks. By binding parameters to the query, the database engine can distinguish between code and data, ensuring the security of the application. 

// Original vulnerable code snippet
$username = $_POST['username'];
$password = $_POST['password'];

$query = "SELECT * FROM users WHERE username='$username' AND password='$password'";
$result = mysqli_query($connection, $query);

// Fixed code snippet using prepared statements
$username = $_POST['username'];
$password = $_POST['password'];

$query = "SELECT * FROM users WHERE username=? AND password=?";
$stmt = $connection->prepare($query);
$stmt->bind_param("ss", $username, $password);
$stmt->execute();
$result = $stmt->get_result();

Keywords

SQL Injection PHP code Prepared Statements PDO Security

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