diff options
| -rw-r--r-- | includes/common.inc | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/includes/common.inc b/includes/common.inc index 9ad68eabd..903409531 100644 --- a/includes/common.inc +++ b/includes/common.inc @@ -3833,7 +3833,14 @@ function drupal_clean_css_identifier($identifier, $filter = array(' ' => '-', '_ * The cleaned class name. */ function drupal_html_class($class) { - return drupal_clean_css_identifier(drupal_strtolower($class)); + // The output of this function will never change, so this uses a normal + // static instead of drupal_static(). + static $classes = array(); + + if (!isset($classes[$class])) { + $classes[$class] = drupal_clean_css_identifier(drupal_strtolower($class)); + } + return $classes[$class]; } /** |