What is SQL injection in Laravel and how can I prevent it?

What is SQL injection in Laravel and how can I prevent it?

SQL injection is a code injection technique that attackers use to exploit vulnerabilities in an application. In Laravel, it can occur if user input is not properly sanitized before being included in SQL queries.

How can I protect my Laravel application from SQL injection?

To protect your Laravel application, always use parameterized queries or Eloquent ORM, which automatically escapes input. Additionally, validate and sanitize user inputs.

Can you give me an example of a vulnerable query?

Sure! A vulnerable query might look like this: DB::select('SELECT * FROM users WHERE id = ' . $userId); If $userId is not sanitized, an attacker could manipulate it.

What is the best practice for writing secure queries in Laravel?

The best practice is to use Eloquent models or query builder methods like where() which automatically handle input escaping, ensuring your queries are safe.