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Code example of php regular filtering html tags, spaces, newlines, etc.

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2016-07-25 09:04:401056browse

  3. /**

  4. desc: regular filtering of html tags, spaces, newlines, etc.
  5. link: bbs.it-home.org
  6. date: 2013/2/23
  7. */
  8. $str=preg_replace("/s+/", " ", $str); //Filter excess carriage returns
  9. $ str=preg_replace("/<[ ]+/si","<",$str); //Filter<__("<" followed by a space)

  10. $str=preg_replace("//si","",$str); //Comment

  11. $str=preg_replace("/<(!.*?)> ;/si","",$str); //Filter DOCTYPE
  12. $str=preg_replace("/<(/?html.*?)>/si","",$str); //Filter html tag
  13. $str=preg_replace("/<(/?head.*?)>/si","",$str); //Filter head tag
  14. $str=preg_replace("/<(/ ?meta.*?)>/si","",$str); //Filter meta tags
  15. $str=preg_replace("/<(/?body.*?)>/si","" ,$str); //Filter the body tag
  16. $str=preg_replace("/<(/?link.*?)>/si","",$str); //Filter the link tag
  17. $str= preg_replace("/<(/?form.*?)>/si","",$str); //Filter form tag
  18. $str=preg_replace("/cookie/si","COOKIE",$ str); //Filter COOKIE tag

  19. $str=preg_replace("/<(applet.*?)>(.*?)<(/applet.*?)> ;/si","",$str); //Filter applet tags

  20. $str=preg_replace("/<(/?applet.*?)>/si","",$str); // Filter applet tags

  21. $str=preg_replace("/<(style.*?)>(.*?)<(/style.*?)>/si", "",$str); //Filter style tags

  22. $str=preg_replace("/<(/?style.*?)>/si","",$str); //Filter style tags< /p>

  23. $str=preg_replace("/<(title.*?)>(.*?)<(/title.*?)>/si","",$str ); //Filter the title tag

  24. $str=preg_replace("/<(/?title.*?)>/si","",$str); //Filter the title tag

  25. < ;p>$str=preg_replace("/<(object.*?)>(.*?)<(/object.*?)>/si","",$str); //Filter object tag
  26. $str=preg_replace("/<(/?objec.*?)>/si","",$str); //Filter object tag

  27. $str =preg_replace("/<(noframes.*?)>(.*?)<(/noframes.*?)>/si","",$str); //Filter noframes tag

  28. $str =preg_replace("/<(/?noframes.*?)>/si","",$str); //Filter noframes tag

  29. $str=preg_replace("/ <(i?frame.*?)>(.*?)<(/i?frame.*?)>/si","",$str); //Filter frame tag

  30. $str= preg_replace("/<(/?i?frame.*?)>/si","",$str); //Filter frame tag

  31. $str=preg_replace(" /<(script.*?)>(.*?)<(/script.*?)>/si","",$str); //Filter script tags

  32. $str=preg_replace(" /<(/?script.*?)>/si","",$str); //Filter script tags
  33. $str=preg_replace("/javascript/si","Javascript",$str); //Filter script tags
  34. $str=preg_replace("/vbscript/si","Vbscript",$str); //Filter script tags
  35. $str=preg_replace("/on([a-z]+)s*=/ si","On\1=",$str); //Filter script tags
  36. $str=preg_replace("//si","",$str); //Filter script tags, such as javAsCript :alert(
  37. ?>

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