Compatibility with PHP version 5.3 (#5976)

'asort' with SORT_NATURAL was added only in PHP version 5.4.

www/include/monitoring/common-Func.php

@@ -122,7 +122,6 @@ function get_notified_infos_for_host($hostId)
             $stopReading['contactGroups'] = 1;
         }
 
-        
         if ($stopReading['contacts'] == 1 && $stopReading['contactGroups'] == 1) {
             break;
         }
@@ -142,8 +141,14 @@ function get_notified_infos_for_host($hostId)
         $stack = array_merge($hostsTpl, $stack);
     }
 
+    if (version_compare(phpversion(), '5.4.0') >= 0){
         asort($results['contacts'], SORT_NATURAL | SORT_FLAG_CASE);
         asort($results['contactGroups'], SORT_NATURAL | SORT_FLAG_CASE);
+    } else {
+        natcasesort($results['contacts']);
+        natcasesort($results['contactGroups']);
+    }
+
     return $results;
 }
 
@@ -237,8 +242,14 @@ function get_notified_infos_for_service($serviceId, $hostId)
         return get_notified_infos_for_host($hostId);
     }
 
+    if (version_compare(phpversion(), '5.4.0') >= 0){
         asort($results['contacts'], SORT_NATURAL | SORT_FLAG_CASE);
         asort($results['contactGroups'], SORT_NATURAL | SORT_FLAG_CASE);
+    } else {
+        natcasesort($results['contacts']);
+        natcasesort($results['contactGroups']);
+    }
+
     return $results;
 }