Only variables should be passed by reference

src/serverlib/calendar.class.php

@@ -778,7 +778,8 @@ class BMCalendar
 			if($c == 7)
 			{
 				$html .= '	</tr>' . "\n";
-				if($arrayKey != array_pop(array_keys($days)))
+				$day_array_keys = array_keys($days);
+				if($arrayKey != array_pop($day_array_keys))
 					$html .= '	<tr>' . "\n";
 				$c = 0;
 			}

src/serverlib/toolinterface.class.php

@@ -550,7 +550,7 @@ class BMToolInterface
 
 		$result = array(
 			'title'		=> $bm_prefs['titel'],
-			'domains'	=> explode(':', $bm_prefs['domains'])
+			'domains'	=> $domains
 		);
 
 		return($result);