How can one effectively extract specific content from a webpage using PHP and regular expressions?

To extract specific content from a webpage using PHP and regular expressions, you can use the `preg_match()` function to search for a specific pattern in the webpage content. Regular expressions can be used to define the pattern you want to extract. Once the content is matched, you can store it in a variable for further processing. 

$url = 'https://www.example.com/page.html';
$content = file_get_contents($url);

$pattern = '/<title>(.*?)<\/title>/s'; // Regex pattern to extract content within <title> tags
if (preg_match($pattern, $content, $matches)) {
    $title = $matches[1]; // Extracted title content
    echo $title;
} else {
    echo 'Title not found';
}

Keywords

PHP regular expressions web scraping DOM parsing preg_match

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