来自此代码的preg_match

Question

Hi if someone could help me with my preg_match I want the title from this code

    <dt class="gallery-icon">
    <a href="?attachment_id=31" title="title">
        <img width="150" height="150" src="librosdefirmas-bodas-1-150x150.jpg" class="attachment-thumbnail" alt="Caption">
    </a>
</dt>

i have this:

preg_match_all('/<dt class="gallery-icon">\s*<a href="(.*)" title="(.*)".*>/is', $page_columns[0], $titles);

But it doesn't work who can help me?

Answer 1

Don't parse HTML with regular expressions. Read.

$html = '
 <dt class="gallery-icon">
    <a href="?attachment_id=31" title="title">
        <img width="150" height="150" src="librosdefirmas-bodas-1-150x150.jpg" class="attachment-thumbnail" alt="Caption">
    </a>
</dt>
';
$dom_document = new DOMDocument();
$dom_document->loadHTML($html);
$dom_xpath = new DOMXpath($dom_document);
$elements = $dom_xpath->query("//dt/a");
print_r( $elements->item(0)->getAttribute('title') );