How can PHP be integrated into an HTML file to dynamically populate a dropdown menu with filenames?
To dynamically populate a dropdown menu with filenames in an HTML file using PHP, you can use the `scandir()` function to retrieve a list of files in a directory, loop through the list, and populate the dropdown menu options with the filenames.
<select>
<?php
$dir = "path/to/directory";
$files = scandir($dir);
foreach($files as $file) {
if ($file != "." && $file != "..") {
echo "<option value='$file'>$file</option>";
}
}
?>
</select>