文章給你分享一篇簡單的關於ubb代碼如何利用php來解析哦，我們主要用到了preg_replace()函數，有了其它一切都好做 代碼如下 復制代碼
/**
+----------------------------------------------------------
* UBB 解析
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
function ubb($Text) {
$Text=trim($Text);
$Text=ereg_replace("n","<br>",$Text);
$Text=preg_replace("/\t/is"," ",$Text);
$Text=preg_replace("/[hr]/is","<hr>",$Text);
$Text=preg_replace("/[separator]/is","<br/>",$Text);
$Text=preg_replace("/[h1](.+?)[/h1]/is","<h1>\1</h1>",$Text);
$Text=preg_replace("/[h2](.+?)[/h2]/is","<h2>\1</h2>",$Text);
$Text=preg_replace("/[h3](.+?)[/h3]/is","<h3>\1</h3>",$Text);
$Text=preg_replace("/[h4](.+?)[/h4]/is","<h4>\1</h4>",$Text);
$Text=preg_replace("/[h5](.+?)[/h5]/is","<h5>\1</h5>",$Text);
$Text=preg_replace("/[h6](.+?)[/h6]/is","<h6>\1</h6>",$Text);
$Text=preg_replace("/[center](.+?)[/center]/is","<center>\1</center>",$Text);
//$Text=preg_replace("/[url=([^[]*)](.+?)[/url]/is","<a href=\1 target='_blank'>\2</a>",$Text);
$Text=preg_replace("/[url](.+?)[/url]/is","<a href="\1" target='_blank'>\1</a>",$Text);
$Text=preg_replace("/[url=(http://.+?)](.+?)[/url]/is","<a href='\1' target='_blank'>\2</a>",$Text);
$Text=preg_replace("/[url=(.+?)](.+?)[/url]/is","<a href=\1>\2</a>",$Text);
$Text=preg_replace("/[img](.+?)[/img]/is","<img src=\1>",$Text);
$Text=preg_replace("/[imgs(.+?)](.+?)[/img]/is","<img \1 src=\2>",$Text);
$Text=preg_replace("/[color=(.+?)](.+?)[/color]/is","<font color=\1>\2</font>",$Text);
$Text=preg_replace("/[colorTxt](.+?)[/colorTxt]/eis","color_txt('\1')",$Text);
$Text=preg_replace("/[style=(.+?)](.+?)[/style]/is","<div class='\1'>\2</div>",$Text);
$Text=preg_replace("/[size=(.+?)](.+?)[/size]/is","<font size=\1>\2</font>",$Text);
$Text=preg_replace("/[sup](.+?)[/sup]/is","<sup>\1</sup>",$Text);
$Text=preg_replace("/[sub](.+?)[/sub]/is","<sub>\1</sub>",$Text);
$Text=preg_replace("/[pre](.+?)[/pre]/is","<pre>\1</pre>",$Text);
$Text=preg_replace("/[emot](.+?)[/emot]/eis","emot('\1')",$Text);
$Text=preg_replace("/[email](.+?)[/email]/is","<a href='mailto:\1'>\1</a>",$Text);
$Text=preg_replace("/[i](.+?)[/i]/is","<i>\1</i>",$Text);
$Text=preg_replace("/[u](.+?)[/u]/is","<u>\1</u>",$Text);
$Text=preg_replace("/[b](.+?)[/b]/is","<b>\1</b>",$Text);
$Text=preg_replace("/[quote](.+?)[/quote]/is","<blockquote>引用:<div style='border:1px solid silver;background:#EFFFDF;color:#393939;padding:5px' >\1</div></blockquote>", $Text);
$Text=preg_replace("/[code](.+?)[/code]/eis","highlight_code('\1')", $Text);
$Text=preg_replace("/[php](.+?)[/php]/eis","highlight_code('\1')", $Text);
$Text=preg_replace("/[sig](.+?)[/sig]/is","<div style='text-align: left; color: darkgreen; margin-left: 5%'><br><br>--------------------------<br>\1<br>--------------------------</div>", $Text);
return $Text;
}
關於preg_replace()函數語法
preg_replace函數基礎與實例代碼
//preg_replace ( mixed $pattern , mixed $replacement , mixed $subject [, int $limit = -1 [, int &$count ]] ) 主題為匹配搜索模式，替換替換
/*
要搜索的模式。它可以是一個字符串或一個字符串數組。
電子修飾符使preg_replace函數（）替代治療後，適當引用作為參數是php教程代碼進行替換。提示：請確保置換構成一個有效的php代碼字符串，否則php將抱怨在包含preg_replace函數線（）解析錯誤。
返回值
preg_replace函數（）返回一個數組，如果這個問題的參數是一個數組或一個字符串，否則。
如果找到匹配，新問題會產生，否則將返回主題不變或null如果發生錯誤。
更多詳細內容請查看：http://www.bKjia.c0m/phper/php-function/33530.htm
