shell_execute

$typeMap = [
    'rar' => 'winrar',
    'zip' => 'winzip'
];

$files = [['type' => 'rar'], ['type' => 'zip'], ['type' => 'mp3']];

foreach ($files as $file) {
    echo array_key_exists($file['type'], $typeMap) ? $typeMap[$file['type']] : $file['type'];
}