Mine

case banner_upload:$allowed = array("jpg", "gif", "png");				$line = explode('.',$userfile);				$ext = $line[1];								if (!in_array($allowed, $ext)) {					echo "Not an allowed file type! File not Uploaded.";					break;				}			$uploaddir = 'banners/';			$uploadfile = $uploaddir . basename($_FILES['userfile']['name']);									if (move_uploaded_file($_FILES['userfile']['tmp_name'],$uploadfile)) {				echo "File is valid, and was successfully uploaded.";			}									echo "			<form enctype='multipart/form-data' action='index.php?page=banner_upload' method='post'>			 <input type='hidden' name='MAX_FILE_SIZE' value='30000' />			 <table border='0'>			 <tr>			 <td>File to upload</td>			 <td><input name='userfile' type='file' /></td>			 </tr>			 <tr>			 <td>&nbsp;</td>			 <td>			 <div align='right'>Upload file:			 <input type='submit' value='Upload' />			 </div></td></tr>			 </table>			</form>		 ";break;