Fixing Issue #132

Cacti log shows syslog error when setting the "Re-Alert Cycle" in Alert Rules settings

Author: TheWitness

CHANGELOG.md

@@ -3,7 +3,11 @@
 --- develop ---
 
 * issue#122: Apply Cacti#3191 for XSS exposure (CVE-2020-7106)
+
 * issue#128：The syslog alert email is not sent if the Reporting Method is set to threshold.
+
+* issue#132: Cacti log shows syslog error when setting the "Re-Alert Cycle" in Alert Rules settings
+
 * issue#133: Saving Settings on the Syslog Tab are not retained in latest Cacti
 
 --- 2.9 ---

syslog_alerts.php

@@ -391,7 +391,7 @@ function get_repeat_array() {
 		$repeat_end = ($alert_retention * 24 * 60 * $multiplier) / 5;
 	}
 
-	if ($repeat_end) {
+	if (isset($repeat_end)) {
 		foreach ($repeatarray as $i => $value) {
 			if ($i > $repeat_end) {
 				unset($repeatarray[$i]);