php中自动提取文章内容关键字seo优化网站的函数步骤-PHP Tutorial-php.cn

php中自动提取文章内容关键字seo优化网站的函数步骤

WBOY

Release： 2016-06-13 10:47:32

Original

1380 people have browsed it

php中自动提取文章内容关键字seo优化网站的函数方法

利用discuz的基础条件实现文章内容自动提取关键字，进而优化网站内链的函数方法

方法一：此方法提取的关键字比较接近

function getkey($contents){  //	$rows = strip_tags($contents);	$arr = array(' ',' ',"\s", "\r\n", "\n", "\r", "\t", ">", "“", "”","<br />");	$qc_rows = str_replace($arr, '', $rows);	if(strlen($qc_rows)>2400){		$qc_rows = substr($qc_rows, '0', '2400');	}	$data = @implode('', file("http://keyword.discuz.com/related_kw.html?title=$qc_rows&ics=gbk&ocs=gbk"));	preg_match_all("/<kw>(.*)A\[(.*)\]\](.*)><\/kw>/",$data, $out, PREG_SET_ORDER);	$key="";	for($i=0;$i<5;$i++){		$key=$key.$out[$i][2];		if($out[$i][2])$key=$key.",";	}	return $key; }

Copy after login

方法二：此方法提取的关键字相对上面差一点点

function getkey($contents){ 	$key = '';	$rows = strip_tags($contents); 	$arr = array(' ',' ',"\s", "\r\n", "\n", "\r", "\t", ">", "“", "”"); 	$qc_rows = str_replace($arr, '', $rows); 	if(strlen($qc_rows)>2400){ 		$qc_rows = substr($qc_rows, '0', '2400'); 	} 	$data = @implode('', file("http://keyword.discuz.com/related_kw.html?title=$contents&ics=gbk&ocs=gbk")); 	preg_match_all("/<kw>(.*)A\[(.*)\]\](.*)><\/kw>/",$data, $out, PREG_SET_ORDER); 	for($i=0;$i<5;$i++){ 		$key=$key.$out[$i][2]; 		if($out[$i][2])$key=$key.","; 	} 	return $key; }

Copy after login

海口?http://www.souhaikou.com

Related labels：

gt key out

source：php.cn

Previous article：php作wap开发时遇到的有关问题 Next article：PHP关于switch case话语中多个值匹配一个代码块的代码

Statement of this Website

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn