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199 WordPress Interview Questions and Answers 2024
How can you prevent SQL injection in WordPress?

How can you prevent SQL injection in WordPress?

Answer: To prevent SQL injection in WordPress:

1. Use Prepared Statements: Always use the `$wpdb` class with prepared statements to safely execute queries.
2. Sanitize Input: Use functions like `sanitize_text_field()` and `esc_sql()` to sanitize user inputs.
3. Use Nonces: Implement nonces for form submissions to verify requests.
4. Keep Plugins and Themes Updated: Regularly update WordPress core, themes, and plugins to patch any vulnerabilities.
5. Limit Database Permissions: Use the least privilege principle for database user permissions.
6. Use Security Plugins: Consider security plugins that help monitor and protect against SQL injection attacks.

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