这篇文章主要介绍了php实现过滤UBB代码的类,涉及php正则表达式的操作技巧,具有一定参考借鉴价值,需要的朋友可以参考下。

本文实例讲述了php实现过滤UBB代码的类，分享给大家供大家参考，具体如下：

PHP代码如下：

1. class Day{
2. function ubb($Text) { /// UBB代码转换
3. //$Text=htmlspecialchars($Text);
4. //$Text=ereg_replace("\r\n","<br>",$Text);
5. $Text=ereg_replace("\[br\]","<br />",$Text);
6. $Text=nl2br($Text);
7. $Text=stripslashes($Text);
8. $Text=preg_replace("/\\t/is"," ",$Text);
9. $Text=preg_replace("/\[url\](http:\/\/.+?)\[\/url\]/is","<a href=\"\\1\" target=\"new\"><u>\\1</u></a>",$Text);
10. $Text=preg_replace("/\[url\](.+?)\[\/url\]/is","<a href=\"http://\\1\" target=\"new\"><u>\\1</u></a>",$Text);
11. $Text=preg_replace("/\[url=(http:\/\/.+?)\](.+?)\[\/url\]/is","<a href=\"\\1\" target=\"new\"><u>\\2</u></a>",$Text);
12. $Text=preg_replace("/\[url=(.+?)\](.+?)\[\/url\]/is","<a href=\"http://\\1\" target=\"new\"><u>\\2</u></a>",$Text);
13. $Text=preg_replace("/\[color=(.+?)\](.+?)\[\/color\]/is","<font color=\"\\1\">\\2</font>",$Text);
14. $Text=preg_replace("/\[font=(.+?)\](.+?)\[\/font\]/is","<font \\1\">\\2</font>",$Text);
15. $Text=preg_replace("/\[email=(.+?)\](.+?)\[\/email\]/is","<a href=\"mailto:\\1\"><u>\\2</u></a>",$Text);
16. $Text=preg_replace("/\[email\](.+?)\[\/email\]/is","<a href=\"mailto:\\1\"><u>\\1</u></a>",$Text);
17. $Text=preg_replace("/\[i\](.+?)\[\/i\]/is","<i>\\1</i>",$Text);
18. $Text=preg_replace("/\[u\](.+?)\[\/u\]/is","<u>\\1</u>",$Text);
19. $Text=preg_replace("/\[b\](.+?)\[\/b\]/is","<b>\\1</b>",$Text);
20. $Text=preg_replace("/\[fly\](.+?)\[\/fly\]/is","<marquee width=\"98%\" behavior=\"alternate\" scrollamount=\"3\">\\1</marquee>",$Text);
21. $Text=preg_replace("/\[move\](.+?)\[\/move\]/is","<marquee width=\"98%\" scrollamount=\"3\">\\1</marquee>",$Text);
22. $Text=preg_replace("/\[shadow=([#0-9a-z]{1,10})\,([0-9]{1,3})\,([0-9]{1,2})\](.+?)\[\/shadow\]/is","<table width=\"*\"><tr><td filter:shadow(color=\\1, direction=\\2 ,strength=\\3)\">\\4</td></tr></table>",$Text);
23. return $Text;
24. }
25. }

希望本文所述对大家的php程序设计有所帮助。