Filter hook 'block_core_navigation_render_fallback'

Hook Information

Hook Parameters

Usage Examples

<?php
// Hook into block_core_navigation_render_fallback
add_filter('block_core_navigation_render_fallback', 'my_custom_filter', 10, 1);

function my_custom_filter($fallback_blocks) {
    // Your custom filtering logic here
    return $fallback_blocks;
}

Source Code Context

<?php
1094  	 *
1095  	 * @since 5.9.0
1096  	 *
1097  	 * @param array[] $fallback_blocks default fallback blocks provided by the default block mechanic.
1098  	 */
1099  	return apply_filters( 'block_core_navigation_render_fallback', $fallback_blocks );
1100  }
1101  
1102  /**
1103   * Iterate through all inner blocks recursively and get navigation link block's post IDs.
1104   *

PHP Documentation

<?php
/**
	 * 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[] $fallback_blocks default fallback blocks provided by the default block mechanic.
	 */