文件上传错误:未定义的变量:文件路径. ™

您好，感谢您对此代码的一些帮助。 它显示以下错误通知：

未定义的变量：文件路径 ™ C：''wamp''www''fileupload''post_listing.php 在第 20 行。

此外，它的显示

"您的 SQL 语法有误;检查手册 对应于您的MySQL服务器版本，以便使用正确的语法 靠近第 1 行的"）"

这是代码

       <?php require_once('libs/Conn_host.php'); ?>   
   <?php 
 if(isset($_POST['upload']))
    {//you get the following information for each file: 
      $fileName = $_FILES['userfile']['name'];
      $tmpName = $_FILES['userfile']['tmp_name'];
      $fileSize = $_FILES['userfile']['size'];
      $fileType = $_FILES['userfile']['type'];
      $target_dir = 'images/';
      $filePath = $target_dir .$fileName;
      $result = move_uploaded_file($tmpName, $filePath);
      if($result) {
           mysql_select_db($database_Conn_host, $Conn_host);
           $query = "INSERT INTO images (name, size, type, path) "."VALUES ('$fileName', '$fileSize', '$fileType', '$filePath’)";
           $rsUpload = mysql_query($query, $Conn_host) or die(mysql_error());
           echo "Successful uploaded" .$fileName;
     }
else {
    echo "Sorry, there was an error uploading your file.";
     }
 }
  ?>
 <form method="post" enctype="multipart/form-data">
 <table width="350" border="0" cellpadding="1" cellspacing="1" class="box">
 <tr> 
 <td width="246">
 <input type="hidden" name="MAX_FILE_SIZE" value="2000000">
 <input name="userfile" type="file" id="userfile"> 
 </td>
 <td width="80"><input name="upload" type="submit" class="box" id="upload" value=" Upload "></td>
 </tr>
 </table>
 </form>