PHP implements blocking black hat SEO search keywords_PHP tutorial

php blocks black hat SEO search keywords

I will give you a method and my idea

The idea is like this. Most of the big guys who want to do this have to leave their QQ or phone number

Then I will match the rules inside, find out the numbers in the search, and then judge the length of the number string, and then judge whether it is a junk search

Provide the code:

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//@功能 屏蔽掉黑帽SEO的搜索关键字 //@By 阳兄 function findNum($str=''){ //取出字符串里面的所有数字 $str=trim($str); if(empty($str)){return '';} $result=''; for($i=0;$i if(is_numeric($str[$i])){ $result.=$str[$i]; } } return $result; } $the_lnum=strlen(findNum($q));//获取数字字符串长度 if($the_lnum>6){ //判断长度是否超过6 超过则直接301到搜索页面 header("HTTP/1.1 301 Moved Permanently"); header("Location: http://".$_SERVER['HTTP_HOST']."/search.php"); exit(); } ?>

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<🎜> <🎜> <🎜>//@Function to block black hat SEO search keywords<🎜> <🎜>//@By Brother Yang<🎜> <🎜> <🎜> <🎜>function findNum($str=''){ //Get all the numbers in the string<🎜> <🎜>$str=trim($str);<🎜> <🎜>if(empty($str)){return '';}<🎜> <🎜>$result='';<🎜> <🎜>for($i=0;$i <🎜>if(is_numeric($str[$i])){<🎜> <🎜>$result.=$str[$i];<🎜> <🎜>}<🎜> <🎜>}<🎜> <🎜>return $result;<🎜> <🎜>}<🎜> <🎜>$the_lnum=strlen(findNum($q));//Get the length of the numeric string<🎜> <🎜>if($the_lnum>6){ //Determine whether the length exceeds 6. If it exceeds 6, directly 301 to the search page header("HTTP/1.1 301 Moved Permanently"); header("Location: http://".$_SERVER['HTTP_HOST']."/search.php"); exit(); } ?>

http://www.bkjia.com/PHPjc/984500.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/984500.htmlTechArticlephp implements blocking search keywords of black hat SEO. I will give you a method. My ideas are like this. Most of the big guys who want to do this have to leave their QQ or phone numbers...