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Amazon S3 Change file download name

...version is AWS SDK for PHP 3.x. here is the doc http://docs.amazonaws.cn/en_us/aws-sdk-php/latest/api-s3-2006-03-01.html#putobject a piece of my code public function __construct($config) { $this->handle = new S3Client([ 'credentials' => array( 'ke...
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What are the differences between virtual memory and physical memory?

...sion of having infinite memory available on their system. Virtual memory mappings are made to correspond to actual physical addresses. The operating system creates and deals with these mappings - utilizing the page table, among other data structures to maintain the mappings. Virtual memory mappings...
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Remove spaces from std::string in C++

... The best thing to do is to use the algorithm remove_if and isspace: remove_if(str.begin(), str.end(), isspace); Now the algorithm itself can't change the container(only modify the values), so it actually shuffles the values around and returns a pointer to where the end now...
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Is there a JavaScript strcmp()?

... well as in the mozilla Javascript reference (developer.mozilla.org/en/Core_JavaScript_1.5_Reference/…) – newacct Jul 24 '09 at 19:37 ...
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Android AsyncTask threads limits?

I am developing an application where I need to update some info every time user logs in to the system, I also use database in the phone. For all those operations (updates, retrieving data from db and etc.) I use async tasks. As up till now I didn't see why I shouldn't use them, but recently I experi...
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How to update SQLAlchemy row entry?

...e, you can get SQLAlchemy to be smarter about incrementing, getting it to happen on the database side instead of the Python side. Doing it within the database is better since it's less vulnerable to data corruption (e.g. two clients attempt to increment at the same time with a net result of only on...
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Check if key exists and iterate the JSON array using Python

...ary Pinter"}, "message": "How ARE you?", "comments": {"count": 0}, "updated_time": "2012-05-01", "created_time": "2012-05-01", "to": {"data": [{"id": "1543", "name": "Honey Pinter"}]}, "type": "status", "id": "id_7"}""" def getTargetIds(jsonData): data = json.loads(jsonData) if 'to' not in ...
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How do you implement a class in C? [closed]

... float (*computeArea)(const ShapeClass *shape); } ShapeClass; float shape_computeArea(const ShapeClass *shape) { return shape->computeArea(shape); } This would let you implement a class, by "inheriting" the base class, and implementing a suitable function: typedef struct { ShapeClass sha...
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Explain Python entry points?

...g_resources mechanism to get the console_scripts and then create a shell wrapper around them. Inspiring? Use these. They are good for more than just console_scripts. – Bruno Bronosky Mar 11 '15 at 21:37 ...
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Easiest way to toggle 2 classes in jQuery

... with the other on (say..) the container. You can guess the other by using _.without() on the array: $mycontainer.removeClass(_.without(types, type)[0]).addClass(type); share | improve this answer ...