大约有 470 项符合查询结果（耗时：0.0204秒） [XML]
Fastest way to check if a string is JSON in PHP?
... OK
return $result;
}
Testing with Valid JSON INPUT
$json = '[{"user_id":13,"username":"stack"},{"user_id":14,"username":"over"}]';
$output = json_validate($json);
print_r($output);
Valid OUTPUT
Array
(
[0] => stdClass Object
(
[user_id] => 13
...
In SQL, how can you “group by” in ranges?
... as [score range], count(*) as [number of occurrences]
from (
select user_id,
case when score >= 0 and score< 10 then '0-9'
when score >= 10 and score< 20 then '10-19'
else '20-99' end as range
from scores) t
group by t.range
...
无法打包成apk - App应用开发 - 清泛IT社区，为创新赋能！
本帖最后由 wlf2201 于 2025-03-02 11:20 编辑
打包apk时候，出现服务器故障，无法保存文件，请稍候重试
程序写的比较大，几乎没有图片，500k稍微多点，新建立一个只有几个元件的小项目，可以顺利打包，怀疑时程序过大导致...
Relational table naming convention [closed]
...ll the time, and you want keys to stand out from data columns. Always use user_id, never id.
Note that this is not a table name used as a prefix, but a proper descriptive name for the component of the key: user_id is the column that identifies an user, not the id of the user table.
(Except of...
How do you display code snippets in MS Word preserving format and syntax highlighting?
...aste it in your word editing software. So far I've tried it on MS Word and WPS Writer, works really well.
Doesn't play nice with Firefox but works just fine on Chrome (and IE too, but who wants to use that).
One of the main benefits is that, unlike the Code Format Add-In for Word, it does NOT mess ...
Rails params explained?
...user's browser requested
http://www.example.com/?vote[item_id]=1&vote[user_id]=2
then params[:vote] would be a hash, params[:vote][:item_id] would be "1" and params[:vote][:user_id] would be "2".
The Ruby on Rails params are the equivalent of the $_REQUEST array in PHP.
...
Using column alias in WHERE clause of MySQL query produces an error
...e`
FROM `users` LEFT OUTER JOIN `locations`
ON `users`.`id` = `locations`.`user_id`
WHERE SUBSTRING(`locations`.`raw`,-6,4) NOT IN #this is where the fake col is being used
(
SELECT `postcode` FROM `postcodes` WHERE `region` IN
(
'australia'
)
)
However, I guess this is very inefficient, sinc...
MySQL COUNT DISTINCT
...
Select
Count(Distinct user_id) As countUsers
, Count(site_id) As countVisits
, site_id As site
From cp_visits
Where ts >= DATE_SUB(NOW(), INTERVAL 1 DAY)
Group By site_id
...
PatternSyntaxException: Illegal Repetition when using regex in Java
...ce the error message: "Illegal repetition".
You should escape them: "\\{\"user_id\" : [0-9]*\\}".
And since you seem to be trying to parse JSON, I suggest you have a look at Jackson.
share
|
impro...
Facebook access token server-side validation for iPhone app
...iphone-safari"
},
application: YOUR_APP_NAMESPACE,
user_id: USER_ID,
issued_at: 1366236791,
expires_at: 1371420791,
scopes: [ ]
}
}
If that token isn't from "your app" then it will return an error response.
...