diff --git a/boot.php b/boot.php
index b67a6cebbe..6cac527eb5 100644
--- a/boot.php
+++ b/boot.php
@@ -129,12 +129,16 @@ class App {
 		$this->pager= array();
 
 		$this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS']))	?  'https' : 'http' );
-		$this->hostname = $_SERVER['SERVER_NAME'];
+
+		if(x($_SERVER,'SERVER_NAME'))
+			$this->hostname = $_SERVER['SERVER_NAME'];
+
 		set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
 
-		if(substr($_SERVER['QUERY_STRING'],0,2) == "q=")
+		if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) == "q=")
 			$_SERVER['QUERY_STRING'] = substr($_SERVER['QUERY_STRING'],2);
-		$this->cmd = trim($_GET['q'],'/');
+		if(x($_GET,'q'))
+			$this->cmd = trim($_GET['q'],'/');
 
 
 		$this->argv = explode('/',$this->cmd);
@@ -1226,6 +1230,7 @@ function allowed_email($email) {
 
 if(! function_exists('format_like')) {
 function format_like($cnt,$arr,$type,$id) {
+	$o = '';
 	if($cnt == 1)
 		$o .= $arr[0] . (($type === 'like') ? t(' likes this.') : t(' doesn\'t like this.')) . EOL ;
 	else {
diff --git a/include/auth.php b/include/auth.php
index a54b24f085..4813bb45bd 100644
--- a/include/auth.php
+++ b/include/auth.php
@@ -2,7 +2,7 @@
 
 // login/logout 
 
-if((x($_SESSION,'authenticated')) && (! ($_POST['auth-params'] === 'login'))) {
+if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && (! ($_POST['auth-params'] === 'login'))) {
 
 	if($_POST['auth-params'] === 'logout' || $a->module === 'logout') {
 	
@@ -53,16 +53,19 @@ if((x($_SESSION,'authenticated')) && (! ($_POST['auth-params'] === 'login'))) {
 }
 else {
 
-	unset($_SESSION['authenticated']);
-	unset($_SESSION['uid']);
-	unset($_SESSION['visitor_id']);
-	unset($_SESSION['administrator']);
-	unset($_SESSION['cid']);
-	unset($_SESSION['theme']);
-	unset($_SESSION['my_url']);
-	unset($_SESSION['page_flags']);
+	if(isset($_SESSION)) {
+		unset($_SESSION['authenticated']);
+		unset($_SESSION['uid']);
+		unset($_SESSION['visitor_id']);
+		unset($_SESSION['administrator']);
+		unset($_SESSION['cid']);
+		unset($_SESSION['theme']);
+		unset($_SESSION['my_url']);
+		unset($_SESSION['page_flags']);
+	}
 
-	$encrypted = hash('whirlpool',trim($_POST['password']));
+	if(x($_POST,'password'))
+		$encrypted = hash('whirlpool',trim($_POST['password']));
 
 	if((x($_POST,'auth-params')) && $_POST['auth-params'] === 'login') {
 
diff --git a/include/dba.php b/include/dba.php
index 133b596efa..9d0896a354 100644
--- a/include/dba.php
+++ b/include/dba.php
@@ -36,8 +36,8 @@ class dba {
 
 			$mesg = '';
 
-			if($this->db->mysqli->errno)
-				$debug_text .=  $this->db->mysqli->error . EOL;
+			if($this->db->errno)
+				$debug_text .=  $this->db->error . EOL;
 
 			if($result === false)
 				$mesg = 'false';
diff --git a/index.php b/index.php
index 0a089106b9..81d089dfb3 100644
--- a/index.php
+++ b/index.php
@@ -12,7 +12,7 @@ $install = ((file_exists('.htconfig.php')) ? false : true);
 
 @include(".htconfig.php");
 
-if(x($lang))
+if(isset($lang) && strlen($lang))
 	load_translation_table($lang);
 
 require_once("dba.php");
diff --git a/mod/network.php b/mod/network.php
index 426ad196c6..cbd8b6bc32 100644
--- a/mod/network.php
+++ b/mod/network.php
@@ -173,7 +173,7 @@ function network_content(&$a, $update = 0) {
 			$comment = '';
 			$template = $tpl;
 			$commentww = '';
-
+			$owner_url = $owner_photo = $owner_name = '';
 			$profile_url = $item['url'];
 			$redirect_url = $a->get_baseurl() . '/redir/' . $item['cid'] ;
 
diff --git a/mod/ping.php b/mod/ping.php
index 731562cd1a..0831e57bfa 100644
--- a/mod/ping.php
+++ b/mod/ping.php
@@ -25,7 +25,7 @@ function ping_init(&$a) {
 	);
 	$intro = $r[0]['total'];
 
-	$myurl = $a->get_baseurl() . '/profile/' . $user['nickname'] ;
+	$myurl = $a->get_baseurl() . '/profile/' . $a->user['nickname'] ;
 	$r = q("SELECT COUNT(*) AS `total` FROM `mail`
 		WHERE `uid` = %d AND `seen` = 0 AND `from-url` != '%s' ",
 		intval(local_user()),
diff --git a/mod/profile.php b/mod/profile.php
index 7c01501d66..3ab77a0940 100644
--- a/mod/profile.php
+++ b/mod/profile.php
@@ -85,7 +85,7 @@ function profile_content(&$a, $update = 0) {
 	$groups = array();
 
 	$tab = 'posts';
-
+	$o = '';
 
 	if($update) {
 		// Ensure we've got a profile owner if updating.
@@ -256,7 +256,6 @@ function profile_content(&$a, $update = 0) {
 
 	);
 
-
 	$cmnt_tpl = load_view_file('view/comment_item.tpl');
 
 	$like_tpl = load_view_file('view/like.tpl');
diff --git a/util/typo.php b/util/typo.php
index e3141a46e2..67fa7dc90d 100644
--- a/util/typo.php
+++ b/util/typo.php
@@ -5,6 +5,11 @@
 
 	include 'boot.php';
 
+	error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE);
+	ini_set('display_errors', '1');
+	ini_set('log_errors','0');
+
+
 	$a = new App();
 
 	$files = glob('mod/*.php');