PHP – 创建文件夹并将图像保存到该文件夹??？然后显示那张照片

我已准备好上传表单并且它可以工作,它将其保存到名为upload的文件夹中,但我需要它根据我的会话中保存的酒店名称创建一个文件夹.这将显示在页面上,告诉用户他们所在的会话.所以现在当他们保存时我需要它来创建以它命名的文件夹以将其保存到该目录.所以这是HTML的代码：

<span class="prettyFile">
                                    <form id="form" action="assets/php/upload.php" method="post" enctype="multipart/form-data">  
                                        <div class="fileupload fileupload-new" data-provides="fileupload">
                                          <div class="input-append">
                                            <div class="uneditable-input span3" style="margin-top: -3px;"><i class="icon-file fileupload-exists"></i> <span class="fileupload-preview"></span></div><span class="btn btn-file btn-success"><span class="fileupload-new">Upload File</span><span class="fileupload-exists">Change</span><input type="file" name="file" /></span><a href="#" class="btn fileupload-exists btn-success" style="margin-top: -3px;" data-dismiss="fileupload">Remove</a>
                                            <button type="submit" name="submit" class="btn btn-primary fileupload-exists" value="Upload"><i class="icon-cloud-upload"></i> Upload</button>
                                          </div>
                                        </div>
                                    </form>
                                </span>

这是PHP：

<?php
$allowedExts = array("gif","jpeg","jpg","png");
$temp = explode(".",$_FILES["file"]["name"]);
$extension = end($temp);
if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/jpg")
|| ($_FILES["file"]["type"] == "image/pjpeg")
|| ($_FILES["file"]["type"] == "image/x-png")
|| ($_FILES["file"]["type"] == "image/png"))
&& ($_FILES["file"]["size"] < 10000000)
&& in_array($extension,$allowedExts))
    if (file_exists("upload/". $_SESSION['curHotelName'] . "/" . $_FILES["file"]["name"]))
        {
          echo "<script language='javascript'>n";
          echo "alert('This file exists! Please select a different file.'); window.location.href='https://hotelmobidev.jvgames.com/profile';";
          echo "</script>n";
        }
        else
        {
          move_uploaded_file($_FILES["file"]["tmp_name"],"upload/". $_SESSION['curHotelName'] . "/" . $_FILES["file"]["name"]);
          echo "<script language='javascript'>n";
          echo "alert('Success!'); window.location.href='https://hotelmobidev.jvgames.com/profile';";
          echo "</script>n";
        } 
?>

我还在搞乱它,但是如果有人能让我朝着正确的方向发展,那将是非常棒的！多谢你们！