如何将纯文本链接/ URL转换为HTML（图像和链接）

Question

So I have a large string of text that can contain links to websites or images. I want to convert these plain URL's to html elements.

Example input:

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?

Needed output:

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" />?

Note;

I found some regex examples that do one of both conversions (URL to href element, or image URL to tag, but I can't seem to find way to combine them! :(

Answer 1

You could accomplish this in the following way ...

$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