PHP website building PHP website Routing code (for search engines)

Copy the Code code as follows:

function Get_referer () {
$se = 0;
$url = $_server["Http_referer"]; Get the full route URL
$str = Str_replace ("http://", "", $url); Remove/HTTP/
$strdomain = Explode ("/", $STR); Separate the units with "/"
$domain = $strdomain [0]; Take the first "/" previous character
if (Strstr ($domain, ' baidu.com ')) {
$se = 1;
}
else if (strstr ($domain, ' cn) ') {
$se = 1;
}
return $se;
}

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