/** * Attached to activate_{ plugin_basename( __FILES__ ) } by register_activation_hook() * @static */ public static function plugin_activation() { if (version_compare($GLOBALS['wp_version'], AKISMET__MINIMUM_WP_VERSION, '<')) { load_plugin_textdomain('akismet'); $message = '<strong>' . sprintf(esc_html__('Akismet %s requires WordPress %s or higher.', 'akismet'), AKISMET_VERSION, AKISMET__MINIMUM_WP_VERSION) . '</strong> ' . sprintf(__('Please <a href="%1$s">upgrade WordPress</a> to a current version, or <a href="%2$s">downgrade to version 2.4 of the Akismet plugin</a>.', 'akismet'), 'https://codex.wordpress.org/Upgrading_WordPress', 'http://wordpress.org/extend/plugins/akismet/download/'); Akismet::bail_on_activation($message); } }