ubb|函数|转换function ubb2xhtml($ubb)
{
$flash=<<<END
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
 codebase="" width="%1\$d" height="%2\$d">
 <param name="movie" value="%3\$s" />
 <param name="quality" value="high" />
 <embed src="%3\$s" width="%1\$d" height="%2\$d" quality="high" type="application/x-shockwave-flash" pluginspage=">
</object>
END;
 $match = array
 (
  #%\[url=([^\s]+)\](.*?)\[/url\]%s#,
  #%\[email=([^\s])+\](.*?)\[/email\]%i#,
  #%\[img width=(\d+) height=(\d+)\](.*?)\[/img\]%s#,
  #%\[img=([^\s]+)\/\]%s#,
  #%\[flash width=(\d+) height=(\d+)\](.*?)\[/flash\]%se#,
  #%\[(b|i|u|strike|sup|sub)\](.*?)\[/\1\]%s#,
  #%\[h([1-6])\](.*?)\[/h\1\]%s#,
  #%\[hr\/\]%s#,
  #%\[color=([^\s]+)\](.*?)\[/color\]%s#,
  #%\[font=([^\"]+)\](.*?)\[/font\]%s#,
  #%\[size=([^\s]+)\](.*?)\[/size\]%s#,
  #%\[align=(center|right|left)\](.*?)\[/align\]%s#,
  #%\[valign=(middle|top|bottom)\](.*?)\[/valign\]%s#,
/*
  #%\[ul\](.*?)\[/ul\]%s#,
  #%\[ul=(circle|disc|square)\](.*?)\[/ul\]%s#,
  #%\[ol\](.*?)\[/ol\]%s#,
  #%\[ol type=([aAiI1]) start=([a-zA-Z1-9])\](.*?)\[/ol\]%s#,
  #%\[li\](.*?)\[/li\]%s#,
*/
  #%\[table=([^\s]+?)\](.*?)\[/table\]%s#,
  #%\[caption\](.*?)\[/caption\]%s#,
  #%\[tr=([^\s]+?)\](.*?)\[/tr\]%s#,
  #%\[th\](.*?)\[/th\]%s#,
  #%\[td\](.*?)\[/td\]%s#,
  #%\[note\](.*?)\[/note\]%s#,
  #%\[quote=(.*?)\](.*?)\[/quote\]%s#,
  #%\[code\](.*?)\[/code\]%s#,
  #%[ ]{2}%s#,  // make double-spaces truly double-spaces!
 );
    $replace = array
 (
  #<a href="\1" target="_blank">\2</a>#,
  #<a href="" target="_blank">\2</a>#,
  #<img src="\3" width="\1" height="\2" border="0" />#,
  #<img src="\1" border="0" />#,
  #sprintf("$flash", "\1", "\2", "\3")#,
  #<\1>\2</\1>#,
  #<h\1>\2</h\1>#,
  #<hr>\n#,
  #<font color="\1">\2</font>#,
  #<font face="\1">\2</font>#,
  #<font size="\1">\2</font>#,
  #<div align="\1">\2</font>#,
  #<div valign="\1">\2</font>#,
/*
  #<ul>\1</ul>#,
  #<ul type="\1">\2</ul>#,
  #<ol>\1</ol>#,
  #<ol type="\1" start="\2">\3</ol>#,
  #<li>\1</li>#,
*/
  "<table class=\"$1\" cellspacing=\"1\">\n$2</table>",
  "\t<caption>$1</caption>\n",
  "\t<tr class=\"$1\">\n$2\t</tr>\n",
  "\t\t<th>$1</th>\n",
  "\t\t<td>$1</td>\n",
  #<div class="note"><span class="hint">发布者备注</span><hr />\1</div>#,
  #<div class="quote"><span class="hint">引用</span>(来源: <a href="\1" target="_blank">\1</a>)<br />\2</div>#,
  #<span class="hint" 10px">代码</span><div class="code">\1</div>#,
  #  #,
 );
 if( preg_match(#%\[table=(.*?)\/table\]%s#, $ubb, $tablecells) ) //如果有表格, 先去除单元格之间的多余空白
 {
  $bb=preg_replace(#%\]([\r\n\s]*)\[%si#, #][#, $tablecells[1]);
  $ubb=str_replace($tablecells[1], $bb, $ubb);
 }
 $html = preg_replace($match, $replace, nl2br(htmlspecialchars($ubb)));
 $html = preg_replace(#/<br \/>\s*<(td|th|tr|table|ul|ol|li)/m#, "\n".#<\1#, $html);
 return $html;
}