从HTML提取文本

Question

Actors: example world

this example word using regular expression in php .....

Answer 1

preg_match('/<strong class="nfpd">Actors<\/strong>:([^<]+)<br \/>/', $text, $matches);

print_r($matches);

Answer 2

Like Gumbo already pointed out in the comments to this question and like you have also been told in a number of your previous questions as well, Regex aint the right tool for parsing HTML .

The following will use DOM to get the first following sibling of any strong elements with a class attribute of nfpd . In the case of the example HTML, this would be the content of the TextNode, eg : example world .

Example HTML:

$html = <<< HTML
<p>
    <strong class="nfpd">Actors</strong>: example world <br />
    something else
</p>
HTML;

And extraction with DOM

libxml_use_internal_errors(TRUE);
$dom = new DOMDocument();
$dom->loadHTML($html);
$xPath = new DOMXPath($dom);
libxml_clear_errors();

$nodes = $xPath->query('//strong[@class="nfpd"]/following-sibling::text()[1]');
foreach($nodes as $node) {
    echo $node->nodeValue; // : example world 
}

You can also do it withouth an XPath, though it gets more verbose then:

$nodes = $dom->getElementsByTagName('strong');
foreach($nodes as $node) {
    if($node->hasAttribute('class') &&
       $node->getAttribute('class') === 'nfpd' &&
       $node->nextSibling) {
        echo $node->nextSibling->nodeValue; // : example world 
    }
}

Removing the colon and whitespace is trivial: Use trim .