PHP 垃圾邮件重定向脚本不起作用，但仅显示纯 html

我编写了以下代码，试图结束看似无休止的垃圾邮件攻击。 我正在使用在与同一问题相关的另一篇文章中找到的关键字列表;但是，该作者正在为不同的体系结构编码。 我正在为IIS7上的PHP编写。 问题是，当代码确实在垃圾邮件引荐来源网址上拾取而不是访问者像我想要的那样被重定向到 127.0.0.1 时，该页面被呈现为纯文本，页面的胆量可见。 这是代码：

<?php
$strReferrer = $_SERVER['HTTP_REFERER'];
$strFilterKeywords = array("Uggboots", "porn", "pharma", "viagra", "vuitton", "jerseys", "handbags", "sleep-deprivation", "sleep-disorders", "insomnia", "phentermine", "phentemine", "vicodin", "hydrocodone", "levitra", "hgh-", "-hgh", "ultram-", "-ultram", "cialis", "soma-", "-soma", "diazepam", "gabapentin", "celebrex", "viagra", "fioricet", "ambien", "valium", "zoloft", "finasteride", "lamisil", "meridia", "allegra", "diflucan", "zovirax", "valtrex", "lipitor", "proscar", "acyclovir", "sildenafil", "tadalafil", "xenical", "melatonin", "xanax", "herbal", "drugs", "lortab", "adipex", "propecia", "carisoprodol", "tramadol", "porno", "shemale", "gangbang", "-cock", "-anal", "-orgy", "cock-", "anal-", "orgy-", "singles-christian", "dating-christian", "cumeating", "cream-pies", "cumsucking", "cumswapping", "cumfilled", "cumdripping", "krankenversicherung", "cumpussy", "suckingcum", "drippingcum", "pussycum", "swappingcum", "eatingcum", "cum-", "-cum", "sperm", "christian-dating", "jewish-singles", "sex-meetings", "swinging", "swingers", "personals", "sleeping", "libido", "grannies", "mature", "enhancement", "sexual", "gay-teen", "teen-chat", "gay-chat", "adult-finder", "adult-friend", "friend-finder", "friend-adult", "finder-adult", "finder-friend", "discrete-encounters", "cheating-wives", "housewives", "/-sex/", "xxx", "snowballing", "fat-", "-fat", "diet", "pills", "weight", "supplement", "texas-hold-em", "poker", "casino", "blackjack", "mortgage", "refinancing", "cash-advance", "cash-money", "pay-day", "netwasgroup.com", "nic4u.com", "wear4u.com", "foxmediasolutions.com", "liveplanets.com", "aeterna-tech.com", "continentaltirebowl.com", "chemsymphony.com", "infolibria.com", "globaleducationeurope.net", "soma/125mb.com", "mitglied/lycos.de", "foxmediasolutions.com", "jroundup.com", "feathersandfurvanlines.com", "conecrusher/org", "sbj-broadcasting.com", "edthompson.com", "codychesnutt.com", "artsmallforsenate.com", "axionfootwear.com", "protzonbeer.com", "candiria.com", "bigsitecity.com", "coresat.com", "istarthere.com", "amateurvoetbal.net", "alleghanyeda.com", "xadulthosting.com", "datashaping.com", "zick/biz", "newprinceton.com", "dvdsqueeze.com", "xopy.com", "webdevboard.com", "devaddict.com", "eaton-inc.com", "whiteguysgroup.com", "guestbookz.com", "webdevsquare.com", "indfx.net", "snap/to", "2y.net", "astromagia/info", "free-sms");
foreach ($strFilterKeywords as $strFilter) {
    if stripos($strReferrer, $strFilter) !== false
        {
        Header("Location: http://127.0.0.1");
        }
    }
unset($strFilter)
?>

有什么想法吗？

谢谢杰森

回答>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

在我批准答案之前，提供工作解决方案的人撤销了他的帖子;但是为了其他人的利益，我希望他的回应是可见的。 以下是他建议的代码：

<?php
$strReferrer = $_SERVER['HTTP_REFERER'];
$strFilterKeywords = array("Uggboots", "whiteguysgroup.com", "guestbookz.com", "webdevsquare.com", "indfx.net", "snap/to", "2y.net", "astromagia/info", "free-sms");
foreach ($strFilterKeywords as $strFilter)
{
    if( stristr($strReferrer, $strFilter) ) // wrap the if statement in ( ) - use stristr function 
        {
        header("Location: http://127.0.0.1");
        }
}
unset($strFilter); // end ;
?>

无论这个神秘的回答者是谁，我都表示衷心的感谢！

杰森