diff --git a/AvocadoEdition_Light/lib/common.lib.php b/AvocadoEdition_Light/lib/common.lib.php
index 1d13c0f..d7b16b2 100644
--- a/AvocadoEdition_Light/lib/common.lib.php
+++ b/AvocadoEdition_Light/lib/common.lib.php
@@ -1636,7 +1636,7 @@ function get_table_define($table, $crlf = "\n")
   global $g5;
 
   // For MySQL < 3.23.20
-  $schema_create .= 'CREATE TABLE ' . $table . ' (' . $crlf;
+  $schema_create = 'CREATE TABLE ' . $table . ' (' . $crlf;
 
   $sql = 'SHOW FIELDS FROM ' . $table;
   $result = sql_query($sql);
@@ -1692,7 +1692,7 @@ function get_table_define($table, $crlf = "\n")
     } else {
       $schema_create .= '    KEY ' . $x . ' (';
     }
-    $schema_create .= implode($columns, ', ') . ')';
+    $schema_create .= implode(', ', $columns) . ')';
   } // end while
 
   $schema_create .= $crlf . ') ENGINE=MyISAM DEFAULT CHARSET=utf8';
@@ -1787,7 +1787,7 @@ function time_select($time, $name = "")
   preg_match("/([0-9]{2}):([0-9]{2}):([0-9]{2})/", $time, $m);
 
   // 시
-  $s .= "<select name='{$name}_h'>";
+  $s = "<select name='{$name}_h'>";
   for ($i = 0; $i <= 23; $i++) {
     $s .= "<option value='$i'";
     if ($i == $m['0']) {
@@ -3235,7 +3235,7 @@ function check_vaild_callback($callback)
 class str_encrypt
 {
   var $salt;
-  var $lenght;
+  var $length = 0;
 
   function __construct($salt = '')
   {