利用正则过滤各种标签，空格，换行符的代码

收集php利用正则过滤各种标签，空格，换行符的代码：

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01	$str=preg_replace("/\s+/", " ", $str); //过滤多余回车

02	$str=preg_replace("/<[ ]+/si","<",$str); //过滤<__("<"号后面带空格)

03	$str=preg_replace("/<\!–.*?–>/si","",$str); //注释

04	$str=preg_replace("/<(\!.*?)>/si","",$str); //过滤DOCTYPE

05	$str=preg_replace("/<(\/?html.*?)>/si","",$str); //过滤html标签

06	$str=preg_replace("/<(\/?head.*?)>/si","",$str); //过滤head标签

07	$str=preg_replace("/<(\/?meta.*?)>/si","",$str); //过滤meta标签

08	$str=preg_replace("/<(\/?body.*?)>/si","",$str); //过滤body标签

09	$str=preg_replace("/<(\/?link.*?)>/si","",$str); //过滤link标签

10	$str=preg_replace("/<(\/?form.*?)>/si","",$str); //过滤form标签

11	$str=preg_replace("/cookie/si","COOKIE",$str); //过滤COOKIE标签

12	$str=preg_replace("/<(applet.*?)>(.*?)<(\/applet.*?)>/si","",$str); //过滤applet标签

13	$str=preg_replace("/<(\/?applet.*?)>/si","",$str); //过滤applet标签

14	$str=preg_replace("/<(style.*?)>(.*?)<(\/style.*?)>/si","",$str); //过滤style标签

15	$str=preg_replace("/<(\/?style.*?)>/si","",$str); //过滤style标签

16	$str=preg_replace("/<(title.*?)>(.*?)<(\/title.*?)>/si","",$str); //过滤title标签

17	$str=preg_replace("/<(\/?title.*?)>/si","",$str); //过滤title标签

18	$str=preg_replace("/<(object.*?)>(.*?)<(\/object.*?)>/si","",$str); //过滤object标签

19	$str=preg_replace("/<(\/?objec.*?)>/si","",$str); //过滤object标签

20	$str=preg_replace("/<(noframes.*?)>(.*?)<(\/noframes.*?)>/si","",$str); //过滤noframes标签

21	$str=preg_replace("/<(\/?noframes.*?)>/si","",$str); //过滤noframes标签

22	$str=preg_replace("/<(i?frame.*?)>(.*?)<(\/i?frame.*?)>/si","",$str); //过滤frame标签

23	$str=preg_replace("/<(\/?i?frame.*?)>/si","",$str); //过滤frame标签

24	$str=preg_replace("/<(script.*?)>(.*?)<(\/script.*?)>/si","",$str); //过滤script标签

25	$str=preg_replace("/<(\/?script.*?)>/si","",$str); //过滤script标签

26	$str=preg_replace("/javascript/si","Javascript",$str); //过滤script标签

27	$str=preg_replace("/vbscript/si","Vbscript",$str); //过滤script标签

28	$str=preg_replace("/on([a-z]+)\s*=/si","On\\1=",$str); //过滤script标签

29	$str=preg_replace("/&#/si","&＃",$str); //过滤script标签