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How would you design a WordPress plugin that optimizes database queries for post retrieval without affecting site performance?

To optimize database queries in a WordPress plugin, I would utilize WordPress’s built-in caching mechanisms like transients to cache query results. Additionally, I would design custom SQL queries using WP_Query…

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What are the best practices for securing a WordPress site against SQL injection attacks, and how do you implement them in PHP?

To secure a WordPress site against SQL injection, always use parameterized queries with the $wpdb class and sanitize user inputs. Employ functions like prepare() for queries, and validate and sanitize…

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What are some common security vulnerabilities in WordPress, and how would you mitigate them in a development project?

Common vulnerabilities in WordPress include SQL injection, cross-site scripting (XSS), and cross-site request forgery (CSRF). To mitigate these, I use prepared statements for database queries, validate and sanitize all user…

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Can you explain how to implement a custom REST API endpoint in a WordPress plugin and what considerations you should keep in mind regarding authentication and performance?

To implement a custom REST API endpoint in a WordPress plugin, you can use the register_rest_route function within the init hook. It’s crucial to consider authentication methods such as OAuth…

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Can you explain the process of creating a custom post type in WordPress and why you might choose to do so in a plugin?

Creating a custom post type in WordPress involves using the register_post_type function within your plugin’s code. It allows you to extend the default content types, enabling better content organization and…

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What are the key security vulnerabilities to consider when developing a WordPress site, and how can you mitigate them?

Key vulnerabilities include SQL injection, cross-site scripting (XSS), and cross-site request forgery (CSRF). Mitigation strategies involve using prepared statements for database queries, sanitizing user inputs, and implementing nonce verification for…

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Can you explain what a WordPress hook is and how it’s used in plugin development?

A WordPress hook allows you to attach your custom code to specific points in the WordPress execution process. There are two types: actions, which let you execute functions, and filters,…

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