如何在php中使用正则表达式匹配两个结束标记？

Question

I have a piece of HTML ( NOT a full HTML document) that has a few instances of the following:

    </div>




            some text is here

    </h3>

I'd like to match 'some text is here' only but am having trouble understanding multiple lines, line breaks and spaces with php regex. What I got is:

    preg_match('/<\/div>[\s\r\n\t]*(.*)[\s\n\r\t]*<\/h3>/', $string, $matches);

But that doesn't seem to work. I tried using DOMDocument() as well but it's throwing all sorts of errors, probably because this is not a full HTML document.

Any ideas??

Answer 1

Use something like

preg_match("@</div>(.*?)</h3>@s", $html, $matches);

The s PCRE modifier (after the last @ ) allows the . to match newlines. The .*? is done so that it will only match up to the first </h3> instead of the last. The data between the tags will be in $matches[1]