db test

index.php

@@ -11,7 +11,7 @@ if ($db->connect_errno){
 function set($ip,$db) {
     $dbAction = $db->prepare("INSERT INTO list (ip) VALUES (?) ON DUPLICATE KEY UPDATE count = count + 1");
     $dbAction->bind_param('i',$ip);
-    $dbAction->execute();
+    return $dbAction->execute();
 }
 if(set($ip,$db)){
     echo "inserted $ip";