Simple definition
An extension point allowing a plugin or theme to execute code without modifying the core WordPress.
Technical definition
An extension point allowing a plugin or theme to execute code without modifying the core WordPress. In WordPressThis mechanism is integrated into the heart, extensions, theme or execution cycle of the site.
What is it used for?
Administer, expand or troubleshoot a site WordPress.
Practical example
Example: This concept can be used during maintenance or troubleshooting WordPress.
Common issues
- Plugin or theme conflict
- Incompatible update
- Cache hiding the change