Removeing Linebreak

[BigBadaBoom]

I have a small Problem.
I have a text in my field called $endinfo which contains several linebreaks (\n).
I would like to remove those and replace them with whitespaces. To do that I used:

$endinfo = str_replace("\n", " ", $endinfo);

The Problem is, that the "\n" is removed, but for some reason its still in the output!
I tryed running a regexp-search for "\n" over the string and it found nothing! But when I did "echo $endinfo;" it still displayed them!

Can anyone PLEASE help me?
I really need them to be gone in the output! Thanks!

[laserlight]

You might have to examine the content with a hex editor.

Newlines could be "\n", "\r" or "\r\n" depending on the platform.

[Pig]

Try doing a double str_replace, once for \n and once for \r. that should get everything.