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How do you Encrypt and Decrypt a PHP String?

...ibsodium. Example with defuse/php-encryption <?php /** * This requires https://github.com/defuse/php-encryption * php composer.phar require defuse/php-encryption */ use Defuse\Crypto\Crypto; use Defuse\Crypto\Key; require "vendor/autoload.php"; // Do this once then store it somehow: $key = ...
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asynchronous vs non-blocking

...(as supported by Windows sockets), or the asynchronous IO pattern used in .NET, are more convenient. You call a method to start an operation, and the framework calls you back when it's done. Even here, there are basic differences. Asynchronous Win32 sockets "marshal" their results onto a specific GU...
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Set focus on TextBox in WPF from view model

...overflow :). The best way to track down issues with Focus is... debugging .Net source code. No kidding. It saved me a lot of time many times. To enable .net source code debugging refer to Shawn Bruke's blog. Finally, general approach that I use to set focus from ViewModel is Attached Properties. I w...
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How can I build a small operating system on an old desktop computer? [closed]

... http://www.osdev.org/ and http://www.osdever.net/ welcome to the OS Development world. See also other x86 documentation links in SO's x86 tag wiki: Intel and AMD manuals, compiler / assembler docs, and various guides. It also suggests using BOCHS or other virtual en...
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How do I pass variables and data from PHP to JavaScript?

...or vanilla JavaScript. You can read more about the dataset property here: https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement.dataset share | improve this answer | ...
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Fastest hash for non-cryptographic uses?

...astest one, while many others beat older hashes, like CRC32, MD5 and SHA. https://code.google.com/p/xxhash/ Note that this is the ordering on a 32-bit compilation. On a 64-bit compilation the performance order is likely very different. Some of the hashes are heavily based on 64-bit multiplications...
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What are the differences between delegates and events?

.... Quote from article: Suppose events didn't exist as a concept in C#/.NET. How would another class subscribe to an event? Three options: A public delegate variable A delegate variable backed by a property A delegate variable with AddXXXHandler and RemoveXXXHandler methods Op...
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Resumable downloads when using PHP to send the file?

... EDIT 2017/01 - I wrote a library to do this in PHP >=7.0 https://github.com/DaveRandom/Resume EDIT 2016/02 - Code completely rewritten to a set of modular tools an an example usage, rather than a monolithic function. Corrections mentioned in comments below have been incorporated. ...
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Is it safe to get values from a java.util.HashMap from multiple threads (no modification)?

...years old and a frequently searched topic. It has received only a very few net upvotes in the last several years so maybe people are coming around :). – BeeOnRope May 20 '19 at 23:19 ...
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Performance difference for control structures 'for' and 'foreach' in C#

... current = current.Next; } while (current != null); } In .NET you will find that the LinkedList<T> class does not even have an indexer, so you wouldn't be able to do your for loop on a linked list; but if you could, the indexer would have to be written like so: public T this[...