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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
...
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...
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.
...
How can I send an HTTP POST request to a server from Excel using VBA?
...nnection:="URL;http://carbon.brighterplanet.com/flights.txt", Destination:=Range("A2"))
.PostText = "origin_airport=MSN&destination_airport=ORD"
.RefreshStyle = xlOverwriteCells
.SaveData = True
.Refresh
End With
Notes:
Regarding output... I don't know if it's possible to ret...
Saving a Numpy array as an image
...
Remember to scale the values to the right range for PNG, usually 0..255. The value ranges in neural networks are frequently 0..1 or -1..1.
– Tomáš Gavenčiak
Mar 31 '18 at 18:49
...
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
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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.
...
How to remove \xa0 from string in Python?
...rror: 'ascii' codec can't decode byte 0xa0 in position 397: ordinal not in range(128).
– gwg
May 28 '15 at 22:15
Was s...
Does a UNIQUE constraint automatically create an INDEX on the field(s)?
...unique keys are in fact B-tree type indexes.
A composite index on (email, user_id) is enough, you don't need a separate index on email only - MySQL can use leftmost parts of a composite index. There may be some border cases where the size of an index can slow down your queries, but you should not w...