function wpcf7_do_something (&$WPCF7_ContactForm) {

    $numbene = $cf7->posted_data["NumerodoContrato"];
    $especie = $cf7->posted_data["Especie"];
    $descontm = $cf7->posted_data["DescontoMensal"];
    $nome = $cf7->posted_data["nome"];
    $file645 = $cf7->posted_data["file-645"];
    $file646 = $cf7->posted_data["file-646"];
    $file647 = $cf7->posted_data["file-647"];


    $wpdb->insert ('wp_wpdatatable_2', array(
        'NumerodoContrato' => $numbene,
        'especie' => $especie,
        'descontomensal' => $descontm,
        'nome' => $nome,
        'anexoidentidade' => $file645,
        'anexocomprovanteresidencia' => $file646,
        'anexodocumentoextra' => $file647


    ) );


    }
add_action("wpcf7_before_send_mail", "wpcf7_do_something");