Update Smarty to v2.6.31 (fix compatibility with PHP 7.2)

onyx2/modules/templates/smarty/plugins/modifier.count_words.php

@@ -2,7 +2,7 @@
 /**
  * Smarty plugin
  * @package Smarty
- * @subpackage PluginsModifier
+ * @subpackage plugins
  */
 
 
@@ -20,6 +20,14 @@
  */
 function smarty_modifier_count_words($string)
 {
-    return str_word_count($string);
+    // split text by ' ',\r,\n,\f,\t
+    $split_array = preg_split('/\s+/',$string);
+    // count matches that contain alphanumerics
+    $word_count = preg_grep('/[a-zA-Z0-9\\x80-\\xff]/', $split_array);
+
+    return count($word_count);
 }
+
+/* vim: set expandtab: */
+
 ?>