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：
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
来源：https://www.cnblogs.com/xingmeng/p/3240550.html
标签
preg_replace
正则
脚本