Display how many spots are left in the choice label when using the GP Limit Choices perk

Display_Spots.php

<?php
/**
 * Display how many spots are left in the choice label when using the GP Limit Choices perk
 * https://gravitywiz.com/gravity-perks/
 */
add_filter( 'gplc_remove_choices', '__return_false' );
add_filter( 'gplc_pre_render_choice', 'ayc_add_how_many_left_message', 10, 5 );
function ayc_add_how_many_left_message( $choice, $exceeded_limit, $field, $form, $count ) {
 $limit = rgar( $choice, 'limit' );
 $how_many_left = max( $limit - $count, 0 );
 $message = "($how_many_left spots left)";
 $choice['text'] = $choice['text'] . " $message";
 return $choice;
}

add_filter( 'gplc_remove_choices', '__return_false' );