Fix PHP Deprecated: Creation of dynamic property cronjob_quota_notify::$_tools is deprecated in

Author: helmo

server/lib/classes/cron.d/100-mailbox_stats_hourly.inc.php

@@ -36,6 +36,8 @@ class cronjob_mailbox_stats_hourly extends cronjob {
 	protected $mail_boxes = array();
 	protected $mail_rewrites = array();
 
+	private $_tools = null;
+
 	/* this function is optional if it contains no custom code */
 	public function onPrepare() {
 		global $app;

server/lib/classes/cron.d/300-quota_notify.inc.php

@@ -33,6 +33,8 @@ class cronjob_quota_notify extends cronjob {
 	// job schedule
 	protected $_schedule = '0 0 * * *';
 
+	private $_tools = null;
+
 	/* this function is optional if it contains no custom code */
 	public function onPrepare() {
 		global $app;