How can prepared statements improve security in PHP applications?

Using prepared statements in PHP can improve security in applications by preventing SQL injection attacks. Prepared statements separate SQL logic from user input, allowing the database to distinguish between code and data. This helps to protect against malicious input that could manipulate SQL queries. 

// Using prepared statements to improve security in PHP applications
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username");
$stmt->bindParam(':username', $username);
$stmt->execute();

Keywords

prepared statements security PHP applications SQL injection parameterized queries

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