w3tc_config_ui_save-w3tc_extensions w3tc_config_ui_save-w3tc_extensions Share this:TweetLike this:Like Loading... Hook Type: actionSee hook in action See this hook used in plugins:Select Pluginw3-total-cache.2.7.2w3-total-cache.2.7.5w3-total-cache.2.7.7w3-total-cache.2.8.0w3-total-cache.2.8.2