PHP batch delete hyperlinks in web content_PHP tutorial

When building a content website, I often use collection software to invade the resources of other sites on the Internet. I collect thousands of articles. After collecting, I find that there are some hyperlinks to the original site in the content. If I go there one by one It would be troublesome to change it, so I wrote a method and the test was successful.

Let’s briefly talk about the principle. What is reused here is PHP’s replacement function preg_replace. In practical applications, we often use preg_replace to replace some dangerous characters or convert some slashes or carriage returns, etc. preg_replace($1,$2,$3) has three important parameters, where $1 is the string to be searched, $2 is the string to be replaced, and $3 is the string to be replaced.

Now that we know how the preg_replace function works, it is not difficult to replace hyperlinks. We only need to convert the parameters $1 and $2 into arrays and perform batch replacement. The following is the method. The test is successful and shared with phper.

The code is as follows

代码如下	复制代码
$str="超级链接|这是个链接 "; function removelink($str){ $mode=array("##iUs","##iUs"); $want=array("",""); $con=preg_replace($mode,$want,$str); return $con; } echo removelink($str); ?>

Copy code

代码如下	复制代码
$content = file_get_contents('test.html'); $url = 'http://www.hzhuti.com'; //要换成的新网址 $preg = '/[s]href=("|')[S]*("|')/i'; $replace = ' href="' . $url . '"'; $content = preg_replace($preg, $replace, $content); //正则替换 create_log('newhtml', $content); //生成新文件 ?>

$str="Hyperlink|This is a link
";
function removelink($str){
$mode=array("##iUs","##iUs");
$want=array("","");
$con=preg_replace($mode,$want,$str);
return $con;
}
echo removelink($str);
?>

or

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TechArticle

When building a content site, collection software is often used to invade the resources of other sites on the Internet. Once collected, There are thousands of articles. After collecting them, I found that there are some super links to the original site in the content...