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How can I prevent SQL injection attacks on my website?
Asked on Nov 04, 2025
Answer
To prevent SQL injection attacks, use parameterized queries or prepared statements, which ensure that user input is treated as data rather than executable code.
<!-- BEGIN COPY / PASTE -->
// Example using a parameterized query in PHP with PDO
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username");
$stmt->execute(['username' => $inputUsername]);
$user = $stmt->fetch();
<!-- END COPY / PASTE -->Additional Comment:
- Always validate and sanitize user inputs, even when using parameterized queries.
- Use ORM frameworks that inherently protect against SQL injection.
- Regularly update your database libraries to patch known vulnerabilities.
✅ Answered with Security best practices.
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