diff --git a/web/yaamp/modules/site/coin.php b/web/yaamp/modules/site/coin.php
index 9e622db..7ea9e43 100644
--- a/web/yaamp/modules/site/coin.php
+++ b/web/yaamp/modules/site/coin.php
@@ -11,7 +11,8 @@
 
 <?php
 
-$coin = getdbo('db_coins', getiparam('id'));
+$id = getiparam('id');
+$coin = getdbo('db_coins', $id);
 if (!$coin) {
 	$this->goback();
 }
diff --git a/web/yaamp/modules/site/memcached.php b/web/yaamp/modules/site/memcached.php
index 187cb6d..0d24370 100644
--- a/web/yaamp/modules/site/memcached.php
+++ b/web/yaamp/modules/site/memcached.php
@@ -12,6 +12,7 @@ function cmp($a, $b)
 	return $a[2] < $b[2];
 }
 
+if (!empty($a))
 foreach($a as $url=>$n)
 {
 	$d = memcache_get($this->memcache->memcache, "$url-time");
@@ -32,6 +33,7 @@ echo "<th align=right>Average</th>";
 echo "</tr>";
 echo "</thead><tbody>";
 
+if (!empty($res))
 foreach($res as $item)
 {
 //	debuglog("$i => $n");