diff --git a/classes/Config.php b/classes/Config.php
index 6e16f269b..c413317be 100644
--- a/classes/Config.php
+++ b/classes/Config.php
@@ -275,13 +275,6 @@ class Config {
 			if (isset(self::_DEFAULTS[$const])) {
 				$override = getenv(self::_ENVVAR_PREFIX . $const);
 
-				// cleanup original env var after importing (unless it's a background process)
-				if (php_sapi_name() != "cli") {
-					putenv(self::_ENVVAR_PREFIX . $const . '=');
-					unset($_ENV[self::_ENVVAR_PREFIX . $const]);
-					unset($_SERVER[self::_ENVVAR_PREFIX . $const]);
-				}
-
 				list ($defval, $deftype) = self::_DEFAULTS[$const];
 
 				$this->params[$cvalue] = [ self::cast_to($override !== false ? $override : $defval, $deftype), $deftype ];
@@ -440,13 +433,6 @@ class Config {
 	private function _add(string $param, string $default, int $type_hint): void {
 		$override = getenv(self::_ENVVAR_PREFIX . $param);
 
-		// cleanup original env var after importing (unless it's a background process)
-		if (php_sapi_name() != "cli") {
-			putenv(self::_ENVVAR_PREFIX . $param . '=');
-			unset($_ENV[self::_ENVVAR_PREFIX . $param]);
-			unset($_SERVER[self::_ENVVAR_PREFIX . $param]);
-		}
-
 		$this->params[$param] = [ self::cast_to($override !== false ? $override : $default, $type_hint), $type_hint ];
 	}
 
diff --git a/classes/Pref_System.php b/classes/Pref_System.php
index 225fc49b9..43bc733f0 100644
--- a/classes/Pref_System.php
+++ b/classes/Pref_System.php
@@ -216,6 +216,17 @@ class Pref_System extends Handler_Administrative {
 					</script>
 					<span class='loading'><?= __("Loading, please wait...") ?></span>
 			</div>
+			<div dojoType='dijit.layout.AccordionPane' title='<i class="material-icons">info</i> <?= __('Scheduled tasks') ?>'>
+					<script type='dojo/method' event='onSelected' args='evt'>
+						if (this.domNode.querySelector('.loading'))
+							window.setTimeout(() => {
+								xhr.post("backend.php", {op: 'Pref_System', method: 'getphpinfo'}, (reply) => {
+									this.attr('content', `<div class='phpinfo'>${reply}</div>`);
+								});
+							}, 200);
+					</script>
+					<span class='loading'><?= __("Loading, please wait...") ?></span>
+			</div>
 
 			<?php PluginHost::getInstance()->run_hooks(PluginHost::HOOK_PREFS_TAB, "prefSystem") ?>
 		</div>