Fixed running of output filters.

Fixes #899

CHANGELOG.md

@@ -6,6 +6,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+- Registered output filters wouldn't run [#899](https://github.com/smarty-php/smarty/issues/899)
+
+### Removed
+- Removed `$smarty->registered_filters` array
+
 ## [5.0.0-rc1] - 2023-08-08
 
 ### Added

src/Debug.php

@@ -210,7 +210,6 @@ public function display_debug($obj, $full = false)
         $debObj->error_reporting = E_ALL & ~E_NOTICE;
         $debObj->debug_tpl = $smarty->debug_tpl ?? 'file:' . __DIR__ . '/../debug.tpl';
         $debObj->registered_resources = array();
-        $debObj->registered_filters = array();
         $debObj->escape_html = true;
         $debObj->caching = \Smarty::CACHING_OFF;
         // prepare information of assigned variables

src/Smarty.php

@@ -384,13 +384,6 @@ class Smarty extends \Smarty\TemplateBase {
 	 */
 	public $registered_classes = [];
 
-	/**
-	 * registered filters
-	 *
-	 * @var array
-	 */
-	public $registered_filters = [];
-
 	/**
 	 * registered resources
 	 *

src/Template.php

@@ -196,7 +196,7 @@ private function render($no_output_filter = true, $display = null) {
 				);
 			} else {
 				if ((!$this->caching || $this->getCached()->getNocacheCode() || $this->getSource()->handler->recompiled)
-					&& !$no_output_filter && isset($this->smarty->registered_filters['output'])
+					&& !$no_output_filter
 				) {
 					echo $this->smarty->runOutputFilters(ob_get_clean(), $this);
 				} else {