PHP:从文本中删除特定域的所有超链接 - PHP: Remove all hyperlinks of specific domain from text

PHP: Remove all hyperlinks of specific domain from text

本文关键字：超链接文本删除 PHP | 更新日期: 2023-09-27

两件事：

删除所有指向mydomain.com&保留不属于此域的所有其他超链接。
对于剩下的所有其他URL，获取标签之间的值并将其显示为ID。

1.关于第一个任务：

我有这个：

$str = 'I have been searching <a href="http://www.google.com">Google</a> for all the valuable information. I have also tried <a href="http://www.yahoo.com">Yahoo</a> and I finally, ended up finding it at
<font size="1">My Site <a style="color:#0000ff;font-family:Arial,Helvetica,sans-serif" href="http://www.mydomain.com/go.php?offer=fine&amp;pid=10" target="_blank" >My Link</a></font>. So you can visit <a href="http://www.mydomain.com/go.php?offer=ok" target="_blank">My Link</a>';

我想要这个：

$str = 'I have been searching <a href="http://www.google.com">Google</a> for all the valuable information. I have also tried <a href="http://www.yahoo.com">Yahoo</a> and I finally, ended up finding it at . So you can visit ';

我尝试了什么：

我尝试了以下preg_replace，但它删除了所有链接。我只想让它删除mydomain.com上的所有链接，并保留其他所有内容。

$pattern = "/<a[^>]*>(.*)<'/a>/iU";
$final_str = preg_replace($pattern, "$1", $str);

2.关于第二项任务：

最后，我想用这个结束：

$str = 'I have been searching <a href="http://www.google.com" id="Google">Google</a> for all the valuable information. I have also tried <a href="http://www.yahoo.com" id="Yahoo">Yahoo</a> and I finally, ended up finding it at . So you can visit ';

这应该分两步完成：

<?
$str = 'I have been searching <a href="http://www.google.com">Google</a> for all the valuable information. I have also tried <a href="http://www.yahoo.com">Yahoo</a> and I finally, ended up finding it at <font size="1">My Site <a style="color:#0000ff;font-family:Arial,Helvetica,sans-serif" href="http://www.mydomain.com/go.php?offer=fine&amp;pid=10" target="_blank" >My Link</a></font>. So you can visit <a href="http://www.mydomain.com/go.php?offer=ok" target="_blank">My Link</a>';
// removing the domain links
$pattern1 = '|<a [^>]*href="http://www.mydomain.com[^"]*"[^>]*>.*</a>|iU';
$str = preg_replace($pattern1, '', $str);
// adding IDs
$pattern2 = '|(<a [^>]+)>(.*)</a>|iU';
$str = preg_replace($pattern2, '$1 id="$2">$2</a>', $str);

如果你也需要去掉<font size="1">My Site </font>部分，请告诉我。