SQL请求返回源ID

Question

我正在做这个请求： $uid = db_query("SELECT uid FROM tablename WHERE mail = 'test@test.com' LIMIT 1")

得到结果：

资源ID＃310

但我想得到这个uid。错误在哪里？

Answer 1

db_query("SELECT uid FROM tablename WHERE mail = 'test@test.com' LIMIT 1");

只是给你一个“答案”，但你想要它的价值。试试这个：

$result = db_query("SELECT uid FROM tablename WHERE mail = 'test@test.com' LIMIT 1");
$row = db_fetch_array($result);
$uid = $row[0];