Filters whether to allow the debug mode check to occur. This filter runs before it can be used by plugins. It is designed for non-web run-times. Returning false causes the `WP_DEBUG` and related constants to not be checked and the default PHP values for errors will be used unless you take care to update them yourself.
- ( 4.6.0 ) . .
- ( bool ) Whether to enable debug mode checks to occur. Default true. . . .