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Where are $_SESSION variables stored?

...ariable storage is determined by PHP's session.save_path configuration. Usually this is /tmp on a Linux/Unix system. Use the phpinfo() function to view your particular settings if not 100% sure by creating a file with this content in the DocumentRoot of your domain: <?php phpinfo(); ?> ...
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In Scala, what exactly does 'val a: A = _' (underscore) mean?

....0d if T is Double, false if T is Boolean, () if T is Unit, null for all other types T. share | improve this answer | follow | ...
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Get button click inside UITableViewCell

...ce Builder (IB) in step two. Just make sure your buttons tag is set. You really don't want to mix up your action calling. Either do it through IB or do it explicitly in your code. – Sententia Apr 29 '14 at 7:12 ...
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How can jQuery deferred be used?

... // or may not have been retrieved using an // XHR request. }); Basically, if the value has already been requested once before it's returned immediately from the cache. Otherwise, an AJAX request fetches the data and adds it to the cache. The $.when/.then doesn't care about any of this; all ...
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How to make the python interpreter correctly handle non-ASCII characters in string operations?

... You actually only need # coding: utf-8. -*- is not for decoration, but you are unlikely to ever need it. I think it was there for old shells. – fmalina May 9 '13 at 13:40 ...
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How to create a DataTable in C# and how to add rows?

...ma/structure, do: dt.WriteXMLSchema("dtSchemaOrStructure.xml"); Additionally, you can also export your data: dt.WriteXML("dtDataxml"); share | improve this answer | foll...
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Visual Studio window which shows list of methods

...io, is there a window which shows list of methods in the active class? A small window like the Solution Explorer would be great. In Eclipse, there is one. ...
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How to calculate a time difference in C++

...turns the CPU time consumed by the program. So if the program is run in parallel the time returned by the function would be the accumulated of the time spent on all CPUs, rather than the time elapsed cplusplus.com/reference/ctime/clock – Ameer Jewdaki Aug 3 '1...
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PHP: exceptions vs errors?

... Exceptions are thrown - they are intended to be caught. Errors are generally unrecoverable. Lets say for instance - you have a block of code that will insert a row into a database. It is possible that this call fails (duplicate ID) - you will want to have a "Error" which in this case is an "Exc...
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What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?

...es <limits.h> are applicable. In terms of long double, that's actually a floating point value rather than an integer. Similarly to the integral types, it's required to have at least as much precision as a double and to provide a superset of values over that type (meaning at least those valu...