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Which $_SERVER variables are safe?
Any variable that a user can control, an attacker can also control and is therefore a source of an attack. This is called a "tainted" variable, and is unsafe.
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How to add an auto-incrementing primary key to an existing table, in PostgreSQL?
I have a table with existing data. Is there a way to add a primary key without deleting and re-creating the table?
4 Answer...
Cast an instance of a class to a @protocol in Objective-C
I have an object (a UIViewController) which may or may not conform to a protocol I've defined.
2 Answers
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Store query result in a variable using in PL/pgSQL
How to assign the result of a query to a variable in PL/pgSQL, the procedural language of PostgreSQL?
5 Answers
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JavaScript plus sign in front of function expression
I’ve been looking for information about immediately invoked functions, and somewhere I stumbled on this notation:
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moment.js - UTC gives wrong date
Why does moment.js UTC always show the wrong date. For example from chrome's developer console:
2 Answers
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How to exclude particular class name in CSS selector?
I'm trying to apply background-color when a user mouse hover the element whose class name is "reMode_hover" .
3 Answers
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How do I undo a checkout in git?
I just checked out an earlier commit from my local git repo. I haven't made any changes to it, I was just looking at it. Now I want to go back to my latest commit - how do I do that?
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java SSL and cert keystore
How does my java program know where my keystore containing the certificate is? Or alternatively how do I tell my java program where to look for the keystore?
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Why can't non-default arguments follow default arguments?
Why does this piece of code throw a SyntaxError?
4 Answers
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