1 files changed, 19 insertions, 15 deletions

diff --git a/lib/smarty/plugins/modifier.replace.php b/lib/smarty/plugins/modifier.replace.php
index 4d71a6e..a98f5a4 100644
--- a/lib/smarty/plugins/modifier.replace.php
+++ b/lib/smarty/plugins/modifier.replace.php
@@ -1,33 +1,37 @@
 <?php
 /**
  * Smarty plugin
- * @package Smarty
+ *
+ * @package    Smarty
  * @subpackage PluginsModifier
  */
-
 /**
  * Smarty replace modifier plugin
- * 
- * Type:     modifier<br>
- * Name:     replace<br>
+ * Type:     modifier
+ * Name:     replace
  * Purpose:  simple search/replace
- * 
- * @link http://smarty.php.net/manual/en/language.modifier.replace.php replace (Smarty online manual)
- * @author Monte Ohrt <monte at ohrt dot com> 
- * @author Uwe Tews 
+ *
+ * @link   http://smarty.php.net/manual/en/language.modifier.replace.php replace (Smarty online manual)
+ * @author Monte Ohrt <monte at ohrt dot com>
+ * @author Uwe Tews
+ *
  * @param string $string  input string
  * @param string $search  text to search for
  * @param string $replace replacement text
- * @return string 
+ *
+ * @return string
  */
 function smarty_modifier_replace($string, $search, $replace)
 {
+    static $is_loaded = false;
     if (Smarty::$_MBSTRING) {
-        require_once(SMARTY_PLUGINS_DIR . 'shared.mb_str_replace.php');
+        if (!$is_loaded) {
+            if (!is_callable('smarty_mb_str_replace')) {
+                include_once SMARTY_PLUGINS_DIR . 'shared.mb_str_replace.php';
+            }
+            $is_loaded = true;
+        }
         return smarty_mb_str_replace($search, $replace, $string);
     }
-    
     return str_replace($search, $replace, $string);
-} 
-
-?>
\ No newline at end of file
+}