Wrapping an img tag in an a tag with the src attribute as the href

Question

I need help turning something like:

<img class="coup-pic" src="http://example.com/img/pic.jg" alt="" />

into:

<a href="http://example.com/img/pic.jg"><img class="coup-pic" src="http://example.com/img/pic.jg" alt="" /></a>

I need to be able to dynamically search for a string like the one above using PHP and wrap it in an a tag with the src attribute used as the a tag. I think I'll need to use preg_replace, but I do not know the right regex to use.

Thanks for the help!

Answer 1

我目前不在哪里可以测试这个，但尝试一下：

$html = preg_replace('/(<img [^>]*src="([^"]*)"[^>]*>)/i', '<a href="$2">$1</a>', $html);

Answer 2

这似乎有效：

preg_replace('/\\<img class="([a-zA-Z0-9\\-]*)" src="([A-Za-z0-9\\-\\.\\:\\/]*)" alt=""\\/\\>/','<a href="\\\\2"><img class="\\\\1" src="\\\\2" alt=""/></a>',$string);