How can PHP be used to retrieve and display information about installed software packages on a Windows system?

To retrieve and display information about installed software packages on a Windows system using PHP, you can utilize the `exec()` function to run a command that lists installed programs. The `wmic` command can be used to query the Windows Management Instrumentation (WMI) for this information.

<?php
$command = 'wmic product get Name,Version';
exec($command, $output);

foreach ($output as $line) {
    echo $line . "<br>";
}
?>