Function to convert WordPress Separator Block to a hook

functions.php

if ( ! function_exists( 'separator_hookr' ) ) {

	add_filter( 'render_block_core/separator', 'separator_hookr', null, 2 );
	/**
	 * separator_hookr
	 *
	 * Method to add hooks using core/separator block
	 * seperator block must have a trigger class name of wps-action-hook
	 * followed by the desired hook name.
	 * If hyphonating use underscores not dashes
	 * Example class="wps-action-hook entry_content_hook"
	 *
	 * Works in conjunction with do_block_action() function.
	 *
	 * @param [type] $block_content
	 * @param [type] $block
	 * @return $block_content
	 */

	function separator_hookr( $block_content, $block )
	{
		/* exit if no class set */
		if ( ! isset( $block['attrs']['className'] ) ) {
			return $block_content;
		}

		/* Class is there, lets grab it */
		$class = $block['attrs']['className'];

		/* If no trigger class ( wps-action-hook ) exit */
		if (! str_contains( $class, 'wps-action-hook' )) {
			return $block_content;
		}

		/* we have our trigger class, so get the hook name, [1] */
		$action = explode('wps-action-hook', $class)[1];

		/* one more check, don't have to have it, but as long as the process is not to intensive lets roll with it */
		if ( isset( $action ) && 'wps-action-hook ' . $action === $block['attrs']['className'] ) {
			$block_content = do_block_action( $action );
		}

		return $block_content;

	}
}