Pagination in header

Hi,

I am using the following code to display a simple star rating in the header close to author name:

// Autor Symbol
add_filter( 'generate_post_author_output', function( $output ) {  
    global $post;

	$stars   = '';
	$average = ci_comment_rating_get_average_ratings( $post->ID );

	for ( $i = 1; $i <= $average + 1; $i++ ) {
		
		$width = intval( $i - $average > 0 ? 20 - ( ( $i - $average ) * 20 ) : 20 );

		if ( 0 === $width ) {
			continue;
		}

		$stars .= '<span style="overflow:hidden; width:' . $width . 'px" class="dashicons dashicons-star-filled"></span>';

		if ( $i - $average > 0 ) {
			$stars .= '<span style="overflow:hidden; position:relative; left:-' . $width .'px;" class="dashicons dashicons-star-empty"></span>';
		}
	}
	
	$custom_content  = '<span class="average-rating"> | Bewertung: ' . $average .' ' . $stars .'</span>';	
	$custom_content = $output . $custom_content  ;
			
	return $custom_content; 
} );

I also want to display the pagenumbers from the current article because my article has more than one page. How can I implement it?