Are there higher security measures against SQL Injections beyond prepared statements and mysql_real_escape_string in PHP?

SQL Injections occur when malicious SQL queries are inserted into input fields, potentially leading to unauthorized access or data manipulation. To prevent SQL Injections in PHP, always use prepared statements and parameterized queries with PDO or MySQLi. Additionally, sanitizing user input with functions like mysqli_real_escape_string can provide an extra layer of security. 

// Using prepared statements with PDO to prevent SQL Injections
$pdo = new PDO("mysql:host=localhost;dbname=mydatabase", "username", "password");

$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username AND password = :password");
$stmt->bindParam(':username', $username);
$stmt->bindParam(':password', $password);
$stmt->execute();

// Fetch data
$result = $stmt->fetchAll(PDO::FETCH_ASSOC);

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