当 url 包含主题标签时，如何让 preg replacement 工作

发布于 2024-08-28 21:33:44 字数 611 浏览 6 评论 0原文

我在网上找到了一个函数，可以将字符串中的 url 转换为可点击的链接。但是，当 url 包含主题标签时，它不起作用。例如。 http://www.bbc.co.uk/radio1/ photos/fearnecotton/5759/1#gallery5759

这是相关功能的部分：

$ret = preg_replace(
    "#(^|[\n ])([\w]+?://[\w]+[^ \"\n\r\t< ]*)#",
    "\\1<a href=\"\\2\" target=\"_blank\">\\2</a>",
    $ret
);

$ret = preg_replace(
    "#(^|[\n ])((www|ftp)\.[^ \"\t\n\r< ]*)#",
    "\\1<a href=\"http://\\2\" target=\"_blank\">\\2</a>",
    $ret
);

有什么想法吗？谢谢

原文

I found a function online for turning a url within a string into a clickable link. However, when the url contains a hashtag it doesn't work. eg. http://www.bbc.co.uk/radio1/photos/fearnecotton/5759/1#gallery5759

Here's the part of the function concerned:

$ret = preg_replace(
    "#(^|[\n ])([\w]+?://[\w]+[^ \"\n\r\t< ]*)#",
    "\\1<a href=\"\\2\" target=\"_blank\">\\2</a>",
    $ret
);

$ret = preg_replace(
    "#(^|[\n ])((www|ftp)\.[^ \"\t\n\r< ]*)#",
    "\\1<a href=\"http://\\2\" target=\"_blank\">\\2</a>",
    $ret
);

Any ideas? thanks

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心病无药医 2024-09-04 21:33:44

试试这个：

<?php

$text = "This is my link:  http://www.bbc.co.uk/radio1/photos/fearnecotton/5759/1#gallery5759";
$text = ereg_replace("[[:alpha:]]+://[^<>[:space:]]+[[:alnum:]/]","<a href=\"\\0\" target=\"_blank\">\\0</a>", $text); 
echo $text; // output: This is my link:  <a href="http://www.bbc.co.uk/radio1/photos/fearnecotton/5759/1#gallery5759" target="_blank">http://www.bbc.co.uk/radio1/photos/fearnecotton/5759/1#gallery5759</a>

?>

Try this:

<?php

$text = "This is my link:  http://www.bbc.co.uk/radio1/photos/fearnecotton/5759/1#gallery5759";
$text = ereg_replace("[[:alpha:]]+://[^<>[:space:]]+[[:alnum:]/]","<a href=\"\\0\" target=\"_blank\">\\0</a>", $text); 
echo $text; // output: This is my link:  <a href="http://www.bbc.co.uk/radio1/photos/fearnecotton/5759/1#gallery5759" target="_blank">http://www.bbc.co.uk/radio1/photos/fearnecotton/5759/1#gallery5759</a>

?>

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