function write (){
    $file = 'people.txt';
    try {
        $current = file_get_contents($file); // Open the file to get existing content
        $current .= "John Smith\n"; // Append a new person to the file
        file_put_contents($file, $current); // Write the contents back to the file
        return true;
    } catch (Exception $e) {
        return false;
    }
}