preg_match_all读取sitesource多行和匹配

Question

I read my own website with file_get_contents to display specific text. I display the data from interviews and I want to get the interview headline and the time to use on another site (link to the interview).

The relevant code block is in a table.

<td>
    Interview 1
    <small style="color:gray">
        Persons 2
        Cameras 2
    </small>
</td>
<td>
    1018 min
</td>

As you can see, Interview 1 is the headline and the time is 1018. I tried this on my own but somehow the pattern got a little crazy.

preg_match_all('#<td>\s*(.+?)\s*<small style="color:gray">\s*<\/small>\s*<\/td><td>\s*(.+?)\s*<\/td>#is', $mysite, $match)

I used \s* for the line breaks and spaces and (.+?) to match. What's wrong with my search pattern?

Answer 1

First you should use a parser for this, regexs on HTML function expectedly. There are two issues with your regex though.

Issue one:

<small style="color:gray">\s*<\/small>

There isn't just white space between that element.

Issue two:

<\/td><td>

There is a new line between the <td>s.

So:

<td>\s*(.+?)\s*<small style="color:gray">.+?<\/small>\s*<\/td>\s<td>\s*(.+?)\s*<\/td>

should work for you (for this static example). If the small element's content is optional change the + to an *. Note also with a parser these wouldnt have been issues.