For even faster data retrieval and shorter code you can combine query execution with data retrieval via sqlite_array_query().

<?php
    $db = sqlite_open(dirname(__FILE__)."/db.sqlite");

    echo '<pre>';
    /* array sqlite_array_query(string query, resource db [ , int result_type [, bool decode_binary]]) */
    var_dump(sqlite_array_query("SELECT * FROM auth_tbl", $db, SQLITE_ASSOC));
    echo '</pre>';
    
    sqlite_close($db);
?>
Output