expire_cached_files: check for glob() returning false

diff --git a/include/rssfuncs.php b/include/rssfuncs.php
index 838087d9055e46aa8b663d3ff076261dd26fe609..6d3cfc3bf5ff23b3673ca0a680c5d61efbce36e2 100644 (file)
--- a/include/rssfuncs.php
+++ b/include/rssfuncs.php
@@ -1369,14 +1369,15 @@
                        if (is_writable($cache_dir)) {
                                $files = glob("$cache_dir/*");
 
-                               foreach ($files as $file) {
-                                       if (time() - filemtime($file) > 86400*7) {
-                                               unlink($file);
+                               if ($files)
+                                       foreach ($files as $file) {
+                                               if (time() - filemtime($file) > 86400*7) {
+                                                       unlink($file);
 
-                                               ++$num_deleted;
+                                                       ++$num_deleted;
+                                               }
                                        }
                                }
-                       }
 
                        if ($debug) _debug("Removed $num_deleted files.");
                }