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How do PHP sessions work? (not “how are they used?”)

... on the server, and named sess_{session_id} . I have been looking at the contents and cannot figure out how they really work. ...
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Web Reference vs. Service Reference

I just hit a huge brick wall with Paypal. I had created a regular C# project to create some wrapper classes using their WSDL. ...
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What's the difference between detaching a Fragment and removing it?

In the Android docs for a FragmentTransaction I noticed two very similar methods: detach and remove . The descriptions over there don't seem to provide much insight about when to use each, and from what I can tell they appear to be the same. ...
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Default function arguments in Rust

Is it possible in Rust to create a function with a default argument? 6 Answers 6 ...
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How to commit changes to a new branch

I just made changes to a branch. How can I commit the changes to the other branch? 3 Answers ...
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nginx missing sites-available directory

I installed Nginx on Centos 6 and I am trying to set up virtual hosts. The problem I am having is that I can't seem to find the /etc/nginx/sites-available directory. ...
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SQL, Postgres OIDs, What are they and why are they useful?

I am looking at some PostgreSQL table creation and I stumbled upon this: 4 Answers 4 ...
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C# DropDownList with a Dictionary as DataSource

...xtField and DataValueField of a Dropdownlist (languageList) using a Dictionary (list) of languageCod (en-gb) as key and language name (english) as the text to display. ...
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What is the _snowman param in Ruby on Rails 3 forms for?

In Ruby on Rails 3 (currently using Beta 4), I see that when using the form_tag or form_for helpers there is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up. ...
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Is a RelativeLayout more expensive than a LinearLayout?

I've always been using RelativeLayout everytime I needed a View container, because of it's flexibility, even if I just wanted to display something really simple. ...