diff --git a/lib/PHPExcel/Calculation/Statistical.php b/lib/PHPExcel/Calculation/Statistical.php
index 1a33610fc..fe6a15063 100644
--- a/lib/PHPExcel/Calculation/Statistical.php
+++ b/lib/PHPExcel/Calculation/Statistical.php
@@ -346,7 +346,7 @@ class PHPExcel_Calculation_Statistical
         $y = $x;
         if ($y > 0.0 && $y <= LOG_GAMMA_X_MAX_VALUE) {
             if ($y <= EPS) {
-                $res = -log(y);
+                $res = -log($y);
             } elseif ($y <= 1.5) {
                 // ---------------------
                 //    EPS .LT. X .LE. 1.5
@@ -677,7 +677,7 @@ class PHPExcel_Calculation_Statistical
         $q = $p - 0.5;
 
         //    computation for p close to 0.5
-        if (abs($q) <= split1) {
+        if (abs($q) <= $split1) {
             $R = $const1 - $q * $q;
             $z = $q * ((((((($a7 * $R + $a6) * $R + $a5) * $R + $a4) * $R + $a3) * $R + $a2) * $R + $a1) * $R + $a0) /
                       ((((((($b7 * $R + $b6) * $R + $b5) * $R + $b4) * $R + $b3) * $R + $b2) * $R + $b1) * $R + 1);
diff --git a/lib/icode.lms.lib.php b/lib/icode.lms.lib.php
index 7a7009eba..2d27c800e 100644
--- a/lib/icode.lms.lib.php
+++ b/lib/icode.lms.lib.php
@@ -327,7 +327,7 @@ function is_vaild_callback($callback){
 function CheckCommonTypeDate($strDate) {
 	$strDate = preg_replace("/[^0-9]/", "", $strDate);
 	if ($strDate){
-		if (!checkdate(substr($strDate,4,2),substr($strDate,6,2),substr($rsvTime,0,4)))
+		if (!checkdate(substr($strDate,4,2),substr($strDate,6,2),substr($strDate,0,4)))
 		return "예약날짜오류";
 		if (substr($strDate,8,2)>23 || substr($strDate,10,2)>59) return false;
 		return "예약날짜오류";
diff --git a/lib/shop.uri.lib.php b/lib/shop.uri.lib.php
index 3e46838d6..6b229b079 100644
--- a/lib/shop.uri.lib.php
+++ b/lib/shop.uri.lib.php
@@ -138,7 +138,7 @@ function shop_short_url_clean($string_url, $url, $page_name, $array_page_names){
             $add_param = '?'.http_build_query($result,'','&amp;');
         }
 
-        if( $add_qry ){
+        if( isset($add_qry) ){
             $add_param .= $add_param ? '&amp;'.$add_qry : '?'.$add_qry;
         }
 
diff --git a/lib/uri.lib.php b/lib/uri.lib.php
index e1443ea8c..3573d8fac 100644
--- a/lib/uri.lib.php
+++ b/lib/uri.lib.php
@@ -1,8 +1,6 @@
 <?php
 if (!defined('_GNUBOARD_')) exit;
 
-include_once(dirname(__FILE__) .'/URI/uri.class.php');
-
 // 짧은 주소 형식으로 만들어서 가져온다.
 function get_pretty_url($folder, $no='', $query_string='', $action='')
 {
diff --git a/plugin/lgxpay/lgdacom/XPayClient.php b/plugin/lgxpay/lgdacom/XPayClient.php
index 23eeb29cf..aee6e9ce9 100644
--- a/plugin/lgxpay/lgdacom/XPayClient.php
+++ b/plugin/lgxpay/lgdacom/XPayClient.php
@@ -904,7 +904,7 @@ class XPayClient
 	*/
 	function StringToHex($MertKey)
 	{
-		$szKey; 
+		$szKey = array();
 		$szMertKey = str_split($MertKey,2);
 		for ($i = 0 ; $i < 16 ; $i++)
 		{
diff --git a/plugin/sms5/sms5.lib.php b/plugin/sms5/sms5.lib.php
index b3b83a005..f48341dfc 100644
--- a/plugin/sms5/sms5.lib.php
+++ b/plugin/sms5/sms5.lib.php
@@ -242,7 +242,7 @@ if($config['cf_sms_type'] == 'LMS') {
         function CheckCommonTypeDate($strDate) {
             $strDate=preg_replace("/[^0-9]/","",$strDate);
             if ($strDate) {
-                if (!checkdate(substr($strDate,4,2),substr($strDate,6,2),substr($rsvTime,0,4))) return "예약날짜가 잘못되었습니다";
+                if (!checkdate(substr($strDate,4,2),substr($strDate,6,2),substr($strDate,0,4))) return "예약날짜가 잘못되었습니다";
                 if (substr($strDate,8,2)>23 || substr($strDate,10,2)>59) return "예약시간이 잘못되었습니다";
             }
         }