no lin breaks?

[putnamehere]

is they anyway i can take away line breaks from text.. example.

Text:
This.
That.
The other.

What i want it to be:
This. That. The other.

[wildteen88]

Simple:
[code]$str = "String<br />with <br />line breaks<br />";
$str = str_replace("<br />", "", $str);

echo $str;[/code]

[putnamehere]

[!--quoteo(post=363052:date=Apr 9 2006, 12:40 PM:name=wildteen88)--][div class=\'quotetop\']QUOTE(wildteen88 @ Apr 9 2006, 12:40 PM) [snapback]363052[/snapback][/div][div class=\'quotemain\'][!--quotec--]
Simple:
[code]$str = "String<br />with <br />line breaks<br />";
$str = str_replace("<br />", "", $str);

echo $str;[/code]
[/quote]

it works but i want to write "$str" to a file and for that it dosent work any ideas y?