WordPress post ratings location change of showing - php

Question

I am a new developer. This code has used form plugin for showing rating average and its working well. But its showing rating above of WP content. I want to show rating on my several specific location of blog page and single page. How can I do that?
add_filter( 'the_content', 'ci_comment_rating_display_average_rating' );
function ci_comment_rating_display_average_rating( ) {
global $post;
if ( false === ci_comment_rating_get_average_ratings( $post->ID ) ) {
return $content;
}
$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 = '<p class="average-rating">This post\'s average rating is:-- ' . $average .' ' . $stars .'</p>';
$custom_content .= $content;
return $custom_content;
}