This error is getting on my nerves

When someone hits the enter button during text on my PM system it say
rn when they press enter
HELP

Could you be slightly more specific please?

See for example
HeyrnHeyrnHey
instead of
Hey
Hey
Hey

Sounds like some kind of mistyping of "\r" and "\n."

i run this script to check <? //BBCODE function
//Local copy

function BBCode($Text)
{
// Replace any html brackets with HTML Entities to prevent executing HTML or script
// Don't use strip_tags here because it breaks [url] search by replacing & with amp


// Convert new line chars to html <br /> tags
$Text = nl2br($Text);
// Set up the parameters for a URL search string
$URLSearchString = " a-zA-Z0-9\:\&\/\-\?\.\=\_\~\#\'";
// Set up the parameters for a MAIL search string
$MAILSearchString = $URLSearchString . " a-zA-Z0-9\.@";

// Perform URL Search
$Text = preg_replace("(\[url\]([$URLSearchString]*)\[/url\])", '<a href="$1">$1</a>', $Text);
$Text = preg_replace("(\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[/url\])", '<a href="$1" target="_blank">$2</a>', $Text);
$Text = preg_replace("(\[URL\=([$URLSearchString]*)\]([$URLSearchString]*)\[/URL\])", '<a href="$1" target="_blank">$2</a>', $Text);
// Perform MAIL Search
$Text = preg_replace("(\[mail\]([$MAILSearchString]*)\[/mail\])", '<a href="mailto:$1">$1</a>', $Text);
$Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.+?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);

// Check for bold text
$Text = preg_replace("(\[b\](.+?)\[\/b])is",'<b>$1</b>',$Text);

// Check for Italics text
$Text = preg_replace("(\[i\](.+?)\[\/i\])is",'<I>$1</I>',$Text);

// Check for Underline text
$Text = preg_replace("(\[u\](.+?)\[\/u\])is",'<u>$1</u>',$Text);

// Check for strike-through text
$Text = preg_replace("(\[s\](.+?)\[\/s\])is",'<span class="strikethrough">$1</span>',$Text);

// Check for over-line text
$Text = preg_replace("(\[o\](.+?)\[\/o\])is",'<span class="overline">$1</span>',$Text);

// Check for colored text
$Text = preg_replace("(\[color=(.+?)\](.+?)\[\/color\])is","<span style=\"color: $1\">$2</span>",$Text);

// Check for sized text
$Text = preg_replace("(\[size=(.+?)\](.+?)\[\/size\])is","<span style=\"font-size: $1px\">$2</span>",$Text);

// Check for list text
$Text = preg_replace("/\[list\](.+?)\[\/list\]/is", '<ul class="listbullet">$1</ul>' ,$Text);
$Text = preg_replace("/\[list=1\](.+?)\[\/list\]/is", '<ul class="listdecimal">$1</ul>' ,$Text);
$Text = preg_replace("/\[list=i\](.+?)\[\/list\]/s", '<ul class="listlowerroman">$1</ul>' ,$Text);
$Text = preg_replace("/\[list=I\](.+?)\[\/list\]/s", '<ul class="listupperroman">$1</ul>' ,$Text);
$Text = preg_replace("/\[list=a\](.+?)\[\/list\]/s", '<ul class="listloweralpha">$1</ul>' ,$Text);
$Text = preg_replace("/\[list=A\](.+?)\[\/list\]/s", '<ul class="listupperalpha">$1</ul>' ,$Text);
$Text = str_replace(" ", "<li>", $Text);
$Text = preg_replace("(\[quote\](.+?)\[\/quote])is",'<center><table class="quotecode"><tr row="forumrow"><td>Quote:<br>$1</td></tr></table></center>',$Text);
$Text = preg_replace("(\[code\](.+?)\[\/code])is",'<center><table class="quotecode"><tr row="forumrow"><td>Code:<br>$1</td></tr></table></center>',$Text);

// Check for font change text
$Text = preg_replace("(\[font=(.+?)\](.+?)\[\/font\])","<span style=\"font-family: $1;\">$2</span>",$Text);



// Images
// pathtoimage
$Text = preg_replace("/\(.+?)\[\/IMG\]/", '<img src="$1">', $Text);
$Text = preg_replace("/\[img\](.+?)\[\/img\]/", '<img src="$1">', $Text);
// [img=widthxheight]image source
$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.+?)\[\/img\]/", '<img src="$3" height="$2" width="$1">', $Text);

return $Text;
}
?>

@KingBowser:
In the future, please use a more descriptive subject when posting a question. See posting guidelines. (http://www.codingforums.com/postguide.htm)

Sorry about that. Forgot to read that :(

Just try echoing out $Text to see what you get. Don't run it through the preg replaces just yet. I think you might need to assign nl2br($Test) to a variable of its down rather than reassigning it to $Text.