How can PHP be used to extract the last modified date of a page?

To extract the last modified date of a page using PHP, you can use the `filemtime()` function to get the timestamp when the file was last modified. You can then use the `date()` function to format this timestamp into a human-readable date format. 

$filename = 'path/to/your/file.html';
if (file_exists($filename)) {
    $lastModified = filemtime($filename);
    $formattedDate = date("F d Y H:i:s.", $lastModified);
    echo "Last modified date: " . $formattedDate;
} else {
    echo "File does not exist.";
}

Keywords

PHP last modified date filemtime timestamp date format

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