WordPress provides thousands of built-in functions that make development easier and safer. Understanding these functions is crucial for writing efficient, secure WordPress code.
Why Use WordPress Functions?
- •Abstraction: Hide complexity behind simple interfaces
- •Consistency: Standardized data handling across the platform
- •Security: Built-in sanitization and escaping
- •Efficiency: Optimized database queries and caching
- •Compatibility: Work across WordPress versions
- •Community Standards: Follow best practices automatically
Core WordPress Functions
Post Functions
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get_posts()- Retrieve an array of posts matching criteria - •
WP_Query()- The proper way to query posts with loop - •
get_post_meta()- Retrieve custom post metadata - •
update_post_meta()- Update or create post metadata
User Functions
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get_current_user_id()- Get the ID of logged-in user - •
current_user_can()- Check user capabilities - •
get_user_meta()- Retrieve user-specific data - •
get_userdata()- Get complete user object