Merged revision(s) 26972, 26998 from trunk:

replace more preg_replace callback
........
remove *_version_compare methods in languages & plugins & themes classes, unused and outdated (preg_replace /e modifier)

git-svn-id: http://piwigo.org/svn/branches/2.6@26999 68402e56-0260-453c-a942-63ccdbb3a9ee

admin/include/functions.php

@@ -576,6 +576,7 @@ SELECT id, id_uppercat, uppercats, rank, global_rank
   FROM '.CATEGORIES_TABLE.'
   ORDER BY id_uppercat,rank,name';
 
+  global $cat_map; // used in preg_replace callback
   $cat_map = array();
 
   $current_rank = 0;
@@ -602,13 +603,16 @@ SELECT id, id_uppercat, uppercats, rank, global_rank
 
   $datas = array();
 
+  $cat_map_callback = create_function('$m', 'global $cat_map; return $cat_map[$m[1]]["rank"];');
+
   foreach( $cat_map as $id=>$cat )
   {
-    $new_global_rank = preg_replace(
-          '/(\d+)/e',
-          "\$cat_map['$1']['rank']",
-          str_replace(',', '.', $cat['uppercats'] )
-          );
+    $new_global_rank = preg_replace_callback(
+      '/(\d+)/',
+      $cat_map_callback,
+      str_replace(',', '.', $cat['uppercats'] )
+      );
+
     if ( $cat['rank_changed']
       or $new_global_rank!=$cat['global_rank']
       )
@@ -621,6 +625,8 @@ SELECT id, id_uppercat, uppercats, rank, global_rank
     }
   }
 
+  unset($cat_map);
+
   mass_updates(
     CATEGORIES_TABLE,
     array(