Help Creating A Type of BBcode.

I created a BBcode type of script for my forum.
Sebby’s Arcade
It works in the main post but then for replies I get this:

[PHP]Fatal error: Cannot redeclare bbcode_format() (previously declared in /home/sebbyarc/public_html/sebbycode.php:8) in /home/sebbyarc/public_html/sebbycode.php on line 8[/PHP]The reason for this is because I repeat this code twice:
[PHP]$str = $maindata[post];
$str2 = $maindata[post];
require(“sebbycode.php”);
$topicpost=$str;
[/PHP]
sebbycode.php contains all the bbcode. How can I fix this?

SEBBYCODE.PHP
[PHP]$str=nl2br($str2);
$str = htmlentities($str);
$str = htmlentities($str2);
$str=nl2br($str);
function bbcode_format ($str) {

// replace the codes
$str = preg_replace (‘/(.*?)/is’, ‘$1‘, $str);
$str = preg_replace (‘/(.*?)/is’, ‘$1‘, $str);
$str = preg_replace (‘/(.*?)/is’, ‘$1‘, $str);
$str = preg_replace (‘/(.*?)/is’,’$2‘, $str);
$str = preg_replace (‘/[fontsize=(.*?)](.*?)[/fontsize]/is’,’$2‘, $str);
$str = preg_replace (‘/[fontcolor=(.*?)](.*?)[/fontcolor]/is’,’$2‘, $str);
$str = preg_replace (‘/[fontface=(.*?)](.*?)[/fontface]/is’,’$2‘, $str);
$str = preg_replace (‘/[highlight=(.*?)](.*?)[/highlight]/is’,’$2‘, $str);
$str = preg_replace (‘/(.*?)/is’,’$1‘, $str);
$str = preg_replace (‘//is’,’‘, $str);
$str = preg_replace (‘/[mail](.*?)[/mail]/is’,’$1‘, $str);
$str = preg_replace (‘/[align=(left|center|right)](.*?)[/align]/is’,’

‘, $str);
$str = preg_replace (‘/

‘, $str);
$str = preg_replace (‘/

(.*?)

/is’,’Quote:

‘, $str);
$str = preg_replace (‘/[code](.*?)[/code]/is’,’Code:

‘, $str);
return $str;
}

$str = bbcode_format($str);
$i=-1;
while ($i <= $csmile) {
$i++;
$str = str_replace(rtrim($smilies[$i]), ““,$str);
}
for($gx=-1;$gx<$tb;$gx++) {
if($badwords[$gx] != “”) {
$str= eregi_replace(rtrim($badwords[$gx]), “@!&^*%”, $str);
}
}[/PHP]

THREAD.PHP
this is used for the main post. It takes $maindata[post] and converts it and stuff:
LINE: 170 roughly
[PHP]$str = $maindata[post];
$str2 = $maindata[post];
require(“sebbycode.php”);
$topicpost=$str;
[/PHP]

Then for the replies I retake the code above but get the error posted.
LINE 290 roughly

For the entire thread.php visit:
http://www.sebbyarcade.com/boards/thread.phps
OR
I grabbed roughly what you may need:
[PHP]
$maindata = @mysql_fetch_array(run_query(“SELECT * FROM topics WHERE board_id='”.$_GET.”‘ AND id='”.$_GET.”‘”));
$str = $maindata[post];
$str2 = $maindata[post];
require(“sebbycode.php”);
$topicpost=$str;

$dateposted=date(“F jS Y – h:i A”, $maindata[date]);
$dateedited=date(“F jS Y – h:i A”, $maindata[editdate]);
$postcount = @mysql_fetch_array(mysql_query(“SELECT * FROM user_info WHERE user=’$profiledata2[name]'”));

require(“boards/boardslinksection.php”);
echo ” | Post Reply | New Topic“;

echo”

SebbyBoards > $boarddata[name] > $maindata[title] “;if($maindata[locked]==”Yes”){echo”“;} echo”

“;

if($staff[group]==”Admin” || $staff[group]==”Moderator”){
echo”

“;
}

echo”

“;

echo “

“;
echo”

“;

if($maindata[editdate]){
echo”

“;
}
echo”

Author	Message
$profiledata2[name] $profiledata2[group] “;if($profiledata2[avatar]==””){ echo”“; }else{ echo”“; } if($staff[group]==”Admin” || $staff[group]==”Moderator”){ echo” IP: $maindata[ip]“; } echo” Posts: $postcount[postcount] “; if ($profiledata2[gender]){ echo” “; } echo” ($trophycount)	$dateposted	EDIT | DELETE | QUOTE
	$topicpost”; if($postcount[signature]){ $realsignature=nl2br($postcount[signature]); echo” $realsignature”; } echo”
	Post last edited by $maindata[edituser] on $dateedited

“;

$threadsdata = mysql_query(“SELECT * FROM threads where board_id='”.$_GET[bid].”‘ AND thread_id='”.$_GET[tid].”‘”);
echo “

“;
while ($r = @mysql_fetch_array($threadsdata)) {
$replyid = $r;
$boardid = $r;
$user = $r;
$title = $r;
$reply = $r;
$date = $r;
$edituser = $r;
$editdate = $r;
$ip = $r;
$dateedited=date(“F jS Y – h:i A”, $editdate);

$date2=date(“F jS Y – h:i A”, $date);

mysql_select_db(“sebbyarc_sebthib55”);
$profiledata=@mysql_fetch_array(run_query(“SELECT * FROM phpqa_accounts WHERE name=’$user'”));
$trophycount2 = @mysql_num_rows(run_query(“SELECT username FROM phpqa_leaderboard WHERE username = ‘$user'”));
mysql_select_db(“sebbyarc_forums”);

// start of code for smilies (all replies)

//$str=nl2br($reply);

$str = $reply;
$str2 = $reply;
require(“sebbycode.php”);
$topicpost=$str;

/* OLD CODE IN CASE
$topicreply = $str;
$i=-1;
while ($i <= $csmile) {
$i++;
$topicreply = str_replace(rtrim($smilies[$i]), ““,$topicreply);
}
for($gx=-1;$gx<$tb;$gx++) {
if($badwords[$gx] != “”) {
$topicreply= eregi_replace(rtrim($badwords[$gx]), “@!&^*%”, $topicreply);
}
}
*/

$dateposted2=date(“F jS Y – h:i A”, $date);
$postcount = @mysql_fetch_array(mysql_query(“SELECT * FROM user_info WHERE user=’$user'”));
echo “

$user $profiledata[group] “;if($profiledata[avatar]==””){ echo”“; }else{ echo”“; } if($staff[group]==”Admin” || $staff[group]==”Moderator”){ echo” IP: $ip“; } echo” Posts: $postcount[postcount] “; if ($profiledata[gender]){ echo” “; } echo” ($trophycount2)

$dateposted2

EDIT | DELETE | QUOTE

$topicreply”;
if($postcount[signature]){
$realsignature=nl2br($postcount[signature]);
echo”

---

$realsignature”;
}
echo”

“;

if($editdate){
echo”

Post last edited by $edituser on $dateedited

“;
}

echo”“;

}
[/PHP]

Any help would be appreciated…. 🙂