Display 0 in top counter if SQL result is empty

www/include/monitoring/status/TopCounter/xml/statusCounter.php

@@ -263,14 +263,14 @@ $obj->XML->endElement();
 $obj->XML->startElement("s");
 $obj->XML->writeElement("th", $hostCounter);
 $obj->XML->writeElement("ts", $serviceCounter);
-$obj->XML->writeElement("o", $svc_stat["OK_TOTAL"]);
-$obj->XML->writeElement("w", $svc_stat["WARNING_TOTAL"]);
+$obj->XML->writeElement("o", ($svc_stat["OK_TOTAL"] ? $svc_stat["OK_TOTAL"] : "0"));
+$obj->XML->writeElement("w", ($svc_stat["WARNING_TOTAL"] ? $svc_stat["WARNING_TOTAL"] : "0"));
 $obj->XML->writeElement("wU", ($svc_stat["WARNING_TOTAL"] - $svc_stat["WARNING_ACK_DT"]));
-$obj->XML->writeElement("c", $svc_stat["CRITICAL_TOTAL"]);
+$obj->XML->writeElement("c", ($svc_stat["CRITICAL_TOTAL"] ? $svc_stat["CRITICAL_TOTAL"] : "0"));
 $obj->XML->writeElement("cU", ($svc_stat["CRITICAL_TOTAL"] - $svc_stat["CRITICAL_ACK_DT"]));
-$obj->XML->writeElement("un1", $svc_stat["UNKNOWN_TOTAL"]);
+$obj->XML->writeElement("un1", ($svc_stat["UNKNOWN_TOTAL"] ? $svc_stat["UNKNOWN_TOTAL"] : "0"));
 $obj->XML->writeElement("un1U", ($svc_stat["UNKNOWN_TOTAL"] - $svc_stat["UNKNOWN_ACK_DT"]));
-$obj->XML->writeElement("p1", $svc_stat["PENDING_TOTAL"]);
+$obj->XML->writeElement("p1", ($svc_stat["PENDING_TOTAL"] ? $svc_stat["PENDING_TOTAL"] : "0"));
 $obj->XML->writeElement("up", $host_stat["0"]);
 $obj->XML->writeElement("d", $host_stat["1"]);
 $obj->XML->writeElement("un2", $host_stat["2"]);