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How do you handle data validation and sanitization in Slim Framework? - Code Stap
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How do you handle data validation and sanitization in Slim Framework?

How do you handle data validation and sanitization in Slim Framework?

Answer: In Slim Framework, data validation and sanitization can be handled using middleware and validation libraries. Common approaches include:

1. Middleware: Create custom middleware to intercept requests and validate input data before it reaches the route handlers.

2. Validation Libraries: Use libraries like Respect Validation or Symfony Validator to define and enforce validation rules on input data.

3. Sanitization: Sanitize input using native PHP functions (e.g., `filter_var()`, `htmlspecialchars()`) to ensure data is clean before processing or storing.

4. Error Handling: Return appropriate HTTP response codes and messages for invalid data to inform clients of issues.

By combining these methods, you ensure that user input is both validated and sanitized effectively.

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