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What does $$ (dollar dollar or double dollar) mean in PHP?
... such as $$variable is called Variable Variable.
For example, if you consider this portion of code :
$real_variable = 'test';
$name = 'real_variable';
echo $$name;
You will get the following output :
test
Here :
$real_variable contains test
$name contains the name of your variable : 'real...
How To Remove Outline Border From Input Button
when click somewhere else the border disappears, tried onfocus none, but didn't help, how to make ugly button border disappear when click on?
...
How to change an application icon programmatically in Android?
...
It's an old question, but still active as there is no explicit Android feature. And the guys from facebook found a work around - somehow. Today, I found a way that works for me. Not perfect (see remarks at the end of this answer) but it works!
Main idea is, that I update the icon of my app's...
How can I send an email by Java application using GMail, Yahoo, or Hotmail?
...static String RECIPIENT = "lizard.bill@myschool.edu";
public static void main(String[] args) {
String from = USER_NAME;
String pass = PASSWORD;
String[] to = { RECIPIENT }; // list of recipient email addresses
String subject = "Java send mail example";
St...
Dynamic SQL - EXEC(@SQL) versus EXEC SP_EXECUTESQL(@SQL)
...mote query plan reuse. When using sp_executesql, parameters are explicitly identified in the calling signature. This excellent article descibes this process.
The oft cited reference for many aspects of dynamic sql is Erland Sommarskog's must read: "The Curse and Blessings of Dynamic SQL".
...
How to get a time zone from a location using latitude and longitude coordinates?
...g a time zone from a location. This community wiki is an attempt at consolidating all of the valid responses.
17 Answers
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Database Design for Revisions?
...r possible performance problems. Your comment about parsing the xml is valid but you could easily create a view using xquery - which you can include in queries and join to. Something like this...
CREATE VIEW EmployeeHistory
AS
, FirstName, , DepartmentId
SELECT EmployeeId, RevisionXML.value('...
is of a type that is invalid for use as a key column in an index
...est maximum size for your keys would be:
create table [misc_info]
(
[id] INTEGER PRIMARY KEY IDENTITY NOT NULL,
[key] nvarchar(450) UNIQUE NOT NULL,
[value] nvarchar(max) NOT NULL
)
i.e. the key can't be over 450 characters. If you can switch to varchar instead of nvarchar (e.g. i...
Where to find extensions installed folder for Google Chrome on Mac?
...ise, look in the <profile user name>/Extensions directory.
If that didn't help, you can always do a custom search.
Go to chrome://extensions/, and find out the ID of an extension (32 lowercase letters) (if not done already, activate "Developer mode" first).
Open the terminal, cd to the ...
Differences between Html.TextboxFor and Html.EditorFor in MVC and Razor
...or is that your code is not tied to an <input type="text". So if you decide to change something to the aspect of how your textboxes are rendered like wrapping them in a div you could simply write a custom editor template (~/Views/Shared/EditorTemplates/string.cshtml) and all your textboxes in you...