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In what cases will HTTP_REFERER be empty
I know it's possible to get an empty HTTP_REFERER. Under what circumstances does this happen? If I get an empty one, does it always mean that the user changed it? Is getting an empty one the same as getting a null one? and under what circumstances do I get that too?
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Why are quaternions used for rotations?
I'm a physicist, and have been learning some programming, and have come across a lot of people using quaternions for rotations instead of writing things in matrix/vector form.
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How to add elements to an empty array in PHP?
If I define an array in PHP such as (I don't define its size):
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How to cherry pick a range of commits and merge into another branch?
I have the following repository layout:
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How do I create a PDO parameterized query with a LIKE statement?
Here's my attempt at it:
7 Answers
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Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization
Could you C++ developers please give us a good description of what RAII is, why it is important, and whether or not it might have any relevance to other languages?
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How to suppress Update Links warning?
I'm trying to write a script that opens many Excel files. I keep getting the prompt:
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jQuery Event Keypress: Which key was pressed?
With jQuery, how do I find out which key was pressed when I bind to the keypress event?
24 Answers
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Finding duplicate rows in SQL Server
I have a SQL Server database of organizations, and there are many duplicate rows. I want to run a select statement to grab all of these and the amount of dupes, but also return the ids that are associated with each organization.
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android.view.InflateException: Binary XML file line #12: Error inflating class
I am receiving many errors of kind displayed in the subj. These errors seems to be occasional and I cannot reproduce them. From stack I can learn that such error may occurs for my different layout resources. The line of XML is also varying.
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