function MergeConfigFiles($configFiles, $suffix)
{
    foreach ($configFiles as $conf) {
        if (file_exists("{$conf}{$suffix}.bak")) {
            if ($conf === CONF_FILE_AIRTIME) {
                // Parse with sections
                $newSettings = parse_ini_file($conf, true);
                $oldSettings = parse_ini_file("{$conf}{$suffix}.bak", true);
            } else {
                $newSettings = ReadPythonConfig($conf);
                $oldSettings = ReadPythonConfig("{$conf}{$suffix}.bak");
            }
            $settings = array_keys($newSettings);
            foreach ($settings as $section) {
                if (isset($oldSettings[$section])) {
                    if (is_array($oldSettings[$section])) {
                        $sectionKeys = array_keys($newSettings[$section]);
                        foreach ($sectionKeys as $sectionKey) {
                            if (isset($oldSettings[$section][$sectionKey])) {
                                UpdateIniValue($conf, $sectionKey, $oldSettings[$section][$sectionKey]);
                            }
                        }
                    } else {
                        UpdateIniValue($conf, $section, $oldSettings[$section]);
                    }
                }
            }
        }
    }
}
function MergeConfigFiles($configFiles, $suffix)
{
    foreach ($configFiles as $conf) {
        if (file_exists("{$conf}{$suffix}.bak")) {
            if ($conf === CONF_FILE_AIRTIME) {
                // Parse with sections
                $newSettings = parse_ini_file($conf, true);
                $oldSettings = parse_ini_file("{$conf}{$suffix}.bak", true);
            } else {
                $newSettings = ReadPythonConfig($conf);
                $oldSettings = ReadPythonConfig("{$conf}{$suffix}.bak");
            }
            //override some values needed for 1.8.0.
            if ($conf === CONF_FILE_PYPO) {
                $oldSettings['cache_dir'] = '/var/tmp/airtime/pypo/cache/';
                $oldSettings['file_dir'] = '/var/tmp/airtime/pypo/files/';
                $oldSettings['tmp_dir'] = '/var/tmp/airtime/pypo/tmp/';
            } else {
                if ($conf === CONF_FILE_RECORDER) {
                    $oldSettings['base_recorded_files'] = '/var/tmp/airtime/show-recorder/';
                }
            }
            $settings = array_keys($newSettings);
            foreach ($settings as $section) {
                if (isset($oldSettings[$section])) {
                    if (is_array($oldSettings[$section])) {
                        $sectionKeys = array_keys($newSettings[$section]);
                        foreach ($sectionKeys as $sectionKey) {
                            if (isset($oldSettings[$section][$sectionKey])) {
                                UpdateIniValue($conf, $sectionKey, $oldSettings[$section][$sectionKey]);
                            }
                        }
                    } else {
                        UpdateIniValue($conf, $section, $oldSettings[$section]);
                    }
                }
            }
        }
    }
}