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# Alexis22 (13.06.2016 / 21:14)
спасибо. жду

if (!empty($_POST['nickname'])) {
    $nickname = mysql_real_escape_string(functions::checkin($_POST['nickname']));
    $sql = "UPDATE m_team SET proz = '$nickname' WHERE id = id_club";
    mysql_query($sql) or die(mysql_error());
    header('Location: '. basename(__FILE__));
    exit;
}

echo '
    <form action="" method="post">
        <input type="text" name="nickname" />
        <input type="submit" value="Изменить"/>
    </form>
';