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我使用一个库来帮助我使用 db 功能。这是一个有效的语法:

if ($memID = $db->get_var("SELECT id FROM users WHERE social_id = ".$_SESSION['user'])) {
   // user found
    $db->query("
          UPDATE users
          SET
            nameF = '".$NameF."',
            nameL = '".$NameL."'
            WHERE id = ".$memID."
          LIMIT 1");
} else {
   // user not found
}

我需要添加额外的检查:

if ($memID = $db->get_var("SELECT id FROM users WHERE social_id = ".$_SESSION['user']) ||
    $memID = $db->get_var("SELECT id FROM users WHERE email = '".$Email."' AND password IS NULL") ||
    ($_COOKIE['socid'] != '' && $memID = $db->get_var("SELECT id FROM users WHERE FIND_IN_SET(social_id, '".$_COOKIE['socid']."'))
 ){

}

但我认为我过于复杂了,并在此过程中引入了错误。我究竟做错了什么?

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