How can a regular expression (RegEx) be used to extract specific information from HTML comments in PHP?

To extract specific information from HTML comments in PHP using a regular expression, you can use the `preg_match` function to search for the desired pattern within the HTML comments. You can define a regular expression pattern that matches the specific information you want to extract, such as a certain keyword or value. By using capturing groups in the regular expression, you can extract the specific information from the matched HTML comment. 

$html = '<!-- This is a comment with specific information: keyword=value -->';

$pattern = '/specific information: (\w+)=(\w+)/';
if (preg_match($pattern, $html, $matches)) {
    $keyword = $matches[1];
    $value = $matches[2];
    
    echo "Keyword: $keyword, Value: $value";
} else {
    echo "Specific information not found in HTML comment.";
}

Keywords

PHP Regular Expression RegEx HTML comments Extraction

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