<?php

//full name of our file (unparsed)
//$file_name = basename( $_FILES['uploadedfile']['name']);
$file_name = "358718666768940_1301356566"; //uniqueID_posixTime (TESTING PURPOSE)

// unique ID of filename (parsed) with positive limit
$unique_ID = explode('_', $file_name);

//unique_ID[0] contains 358718666768940
$dirname = $unique_ID[0];
$filename = "csv_history/{$dirname}";
$target_path = "csv_history/{$dirname}/{$unique_ID[1]}"; //temporary (testing purpose)
    													 //NOTE: unique_ID[1]=posix time (1301356566)
//check to see if directory exists, if not create one
if (file_exists($filename))
{
    echo "The directory {$dirname} exists!\n";
}
else
{
    mkdir("csv_history/{$dirname}", 0777);
    echo "The directory {$dirname} was successfully created.\n";
}
// now that the directory is created (or already exists), move the file from temporary storage to the server
if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path))
{
	echo "The file ".  basename( $_FILES['uploadedfile']['name']). " has been uploaded";
	chmod ("csv_history/{$dirname}/{$unique_ID[1]}", 0644);

	$headername = "csv_history/{$dirname}/{$dirname} . '.phead'";   // will create a file named 358718666768940.phead
	                                                                // cont.. path = csv_history/358718666768940/358718666768940.phead
	$fh = fopen($headername, "a+");
	if ($fh==false)
		die("Unable to create or open file.");
	fwrite($fh,$unique_ID[1]);                                      //append posix time (1301356566) to file
	echo "Success, {$unique_ID[1]} was added to {$unique_ID[0]}.phead!";
	fclose($fh);
}
else
{
	echo "There was an error uploading the file, please try again!";
	echo "filename: " .  basename( $_FILES['uploadedfile']['name']);
	echo "target_path: " .$target_path;
}

?>