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Simplest two-way encryption using PHP

What is the simplest way of doing two way encryption in common PHP installs? 6 Answers ...
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How to detect user inactivity in Android

... Selects Session Timeout to be 5 mins. Does some operations on the app. (all in foreground) Now User bring Myapp to background and starts some other app. ----> Count down timer starts and logs out user after 5 mins OR user turns the screen OFF. ----> Count down timer starts and logs ou...
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Saving a Numpy array as an image

... Remember to scale the values to the right range for PNG, usually 0..255. The value ranges in neural networks are frequently 0..1 or -1..1. – Tomáš Gavenčiak Mar 31 '18 at 18:49 ...
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【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

... .rehash = udp_v4_rehash, .get_port = udp_v4_get_port, .memory_allocated = &udp_memory_allocated, .sysctl_mem = sysctl_udp_mem, .sysctl_wmem = &sysctl_udp_wmem_min, .sysctl_rmem = &sysctl_udp_rmem_min, .obj_size = sizeof(struct udp_sock), .h.udp_table = &udp_tab...
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Which commit has this blob?

... scripts take the blob’s SHA1 as the first argument, and after it, optionally, any arguments that git log will understand. E.g. --all to search in all branches instead of just the current one, or -g to search in the reflog, or whatever else you fancy. Here it is as a shell script – short and sw...
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Is List a subclass of List? Why are Java generics not implicitly polymorphic?

...l> - you can add any animal to it... including a cat. Now, can you logically add a cat to a litter of puppies? Absolutely not. // Illegal code - because otherwise life would be Bad List<Dog> dogs = new ArrayList<Dog>(); // ArrayList implements List List<Animal> animals = dogs; ...
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MaxJsonLength exception in ASP.NET MVC during JavaScriptSerializer

...ction() { var jsonResult = Json(veryLargeCollection, JsonRequestBehavior.AllowGet); jsonResult.MaxJsonLength = int.MaxValue; return jsonResult; } share | improve this answer | ...
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Proper way to handle multiple forms on one page in Django

...ta. Include some hidden inputs if your froms don't have unique fields with all possible values being not empty. – Denis Otkidach Oct 24 '09 at 16:39 14 ...
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How to tell if a tag failed to load

I'm dynamically adding <script> tags to a page's <head> , and I'd like to be able to tell whether the loading failed in some way -- a 404, a script error in the loaded script, whatever. ...
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Escape single quote character for use in an SQLite query

... for replace all (') in your string, use .replace(/\'/g,"''") example: sample = "St. Mary's and St. John's"; escapedSample = sample.replace(/\'/g,"''") sha...