HELP with FTP code

[PHP_apprentice]

I am getting the following error when I run this script can anyone please help me figure this out. I am in a serious situation here.

error:

WARNING: ftp_put():3 is not a valid FTP Buffer resource in

Thanks

         $ftp_server = "*********";
					$ftp_user = "*********";
					$ftp_pass = "**********";
					$conn_id = ftp_connect($ftp_server);
					$login = ftp_login($conn_id, $ftp_user, $ftp_pass);
					########End Variables#######

				###### Check for Connection #######
				$this->conn = $conn_id;

				if((!$conn_id) || (!$login))
				{
					die("FTP connection has failed!!");
				}

				$handle = opendir('/var/aetna/post-reply/');

				ftp_chdir($this->conn , "/TRACKING_RECORDS/SENT_BY_DMP_EPUBPOSTRETURNS/");

				while($filename = readdir($handle))
				{
					if (preg_match ("/EPUBPOSTREPLY_/i", $filename))
					{
						$fp = fopen("/var/aetna/post-reply/".$filename, 'r');
						rewind($fp); 
						$destFile = $filename;

						$src_dir = "/var/aetna/post-reply/";
						echo "fp =: ".$fp."<br>";
						echo "destFile =: ".$destFile."<br>";
						echo "filename =: ".$filename."<br>";		

						$upload = ftp_put($conn_id, $destFile, $src_dir."/".$file, FTP_BINARY);



						if (FALSE == $upload)
						{
							echo "failed";

						}else{

							unlink("/var/aetna/post-reply/" . $filename);
							ftp_close($this->conn);							
						}
					}

				} // while;					

[LordShryku]

Originally posted by PHP_apprentice
I am getting the following error when I run this script

And that error would be......?

[PHP_apprentice]

my apologies

the error is :

WARNING: ftp_put():3 is not a valid FTP Buffer resource in