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PHP Regex dot matches new line alternative

开发者 https://www.devze.com 2023-02-19 07:29 出处:网络
I am come up with a regex to grab all text between 2 HTML开发者_JAVA百科 tags. This is what I have so far:

I am come up with a regex to grab all text between 2 HTML开发者_JAVA百科 tags. This is what I have so far:

<TAG[^>]*>(.*?)</TAG>

In practice, this should work perfectly. But executing it in PHP preg_replace with options: /ims results in the WHOLE string getting matched.

If I remove the /s tag, it works perfectly but the tags have newlines between them. Is there a better way on approaching this?


Of course there's a better way. Don't parse HTML with regex.

DOMDocument should be able to accommodate you better:

$dom = new DOMDocument();
$dom->loadHTMLFile('filename.html');

$tags = $dom->getElementsByTagName('tag');

echo $tags[0]->textContent; // Contents of `tag`

You may have to tweak the above code (hasn't been tested).


I don't recommend use regex to match in full HTML, but, you can use the "dottal" flag: /REGEXP/s

Example:

$str = "<tag>
fvox
</tag>";

preg_match_all('/<TAG[^>]*>(.*?)</TAG>/is', $str, $r);
print_r($r); //dump
0

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