formatting content to one line

[Anon]

I am trying to open a text file of user names and write it to a .htpassGroup file.
The list of user names needs to be on the same line for the .htpassGroup file to work. I can write to the file just fine, but when I do I get this output:
username
another_username
etc..

and it needs to be:

username another_username etc..

Here is what my code looks like:

-Thanks in advance for any help and ideas.
###################################
<?
$masterPass = "employeeUserNames.txt"; //line delimited list of usernames

if(!($openMasterPass = fopen($masterPass, "r"))){

echo "Can't open $masterPass";

}

else{

	$countFile = file($masterPass);
	for($i=0; $i <= count($countFile); $i++){

		$line = fgetss($openMasterPass, 4096);
		$userInfo = explode("\n", $line);
		$passwdFile = ".htEmployeeGroup";

		if(!($openPasswdFile = fopen($passwdFile, "w"))){
			echo "Can't open $passwdFile";
			}

		else{

		$fileData .= " " . $countFile[$i];

		}

	}
	$data = "employee: " . $fileData;
	echo "Finished writing file\n\n";
	echo "$fileData";
	fputs($openPasswdFile, $fileData);
	fclose($openPasswdFile);
	fclose($openMasterPass);

}
?>
###########################

[van__]

Just off the top of my head...

<?

$fp = fopen($file,'rw');
$contents = @fread($fp,filesize($file));
rewind($fp);
fwrite($fp,$contents . " " . $userName);
fclose($fp);

?>

[Anon]

Thanks for the quick response, I tried it but I'm still getting the same new line delimited results. I need it to take a new line delimited text file, and write the results to a one line, space delimited format.

[Anon]

I figured it out. To remove the the new lines, I used: chop($userInfo)

Thanks for the help