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Details about block_core_navigation_render_fallback

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Filename Hook Type Line Number PHP Doc
wp-includes/blocks/navigation.php apply_filters 342 /**
* Filters the fallback experience for the Navigation block.
* Returning a falsey value will opt out of the fallback and cause the block not to render.
* To customise the blocks provided return an array of blocks - these should be valid
* children of the `core/navigation` block.
* @since 5.9.0
* @param array[] default fallback blocks provided by the default block mechanic.

Hook Parameters

Parameter Type Name Description