如何将纯文本链接/URL 转换为 HTML（图像和链接）

Question

所以我有一大串文本，其中可以包含指向网站或图像的链接。我想将这些纯 URL 转换为 html 元素。

示例输入：

Hi my name is Harry you can find my website here: http://www.harry-rox.com. Oh and what do you think of my my wife: http://www.anothersite.com/wife.jpg?

需要的输出：

Hi my name is Harry you can find my website here: <a href="http://www.harry-rox.com">http://www.harry-rox.com</a>. Oh and what do you think of my my wife: <img src="http://www.anothersite.com/wife.jpg" />?

注意；

我发现了一些正则表达式示例，它们执行两种转换之一（URL 到 href 元素，或图像 URL 到标记，但我似乎无法找到组合它们的方法！:(

Answer 1

您可以通过以下方式完成此操作...

$str = 'Hi my name is Harry you can find my website here: http://www.harry-rox.com. Oh and what do you think of my my wife: http://www.anothersite.com/wife.jpg?';
$r1 = '/(http:\/\/[\S]+(?:jpg|jpeg|png|gif))/';
$r2 = '/(?<!src=")(http:\/\/[\S]+\b)/';
$sub1 = '<img src="$1"/>';
$sub2 = '<a href="$1">$1</a>';
$res = preg_replace($r1, $sub1, $str);
$result = preg_replace($r2, $sub2, $res);
echo $result;

DEMO

Answer 2

使用 preg_replace sandbox.onlinephpfunctions.com

$count = null;
$string = "Hi my name is Harry you can find my website here: http://www.harry-rox.com. Oh and what do you think of my my wife: http://www.anothersite.com/wife.jpg?";
$string = preg_replace('~https?://(?![^" ]*(?:jpg|png|gif))[^" ]+\w~', '<a href="$0" target="_blank" title="$0">$0</a>', 'Hi my name is Harry you can find my website here: http://www.harry-rox.com. Oh and what do you think of my my wife: http://www.anothersite.com/wife.jpg?', -1, $count);
$string = preg_replace('~([a-z\\-_0-9\\/\\:\\.]*\\.(jpg|jpeg|png|gif)).~', '<img src="$0" />', $string, -1, $count);
print $string;