<?php
$str = ' Enjoy the best deals, rates and accessories. ... Offer Codes {couponCount} * ... Car Rental from Budget, Book Online Now & Save. Car rentals that fit your budget View All Deals \u203a Up to 25% off with 10% donated to Susan G. Komen';
$str = preg_replace('/[}]+/', '}', $str);
var_dump($str);
string(233) " Enjoy the best deals, rates and accessories. ... Offer Codes {couponCount} * ... Car Rental from Budget, Book Online Now & Save. Car rentals that fit your budget View All Deals \u203a Up to 25% off with 10% donated to Susan G. Komen"
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
string(233) " Enjoy the best deals, rates and accessories. ... Offer Codes {couponCount} * ... Car Rental from Budget, Book Online Now & Save. Car rentals that fit your budget View All Deals \u203a Up to 25% off with 10% donated to Susan G. Komen"