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Simplest two-way encryption using PHP
...ssl_encrypt() & openssl_decrypt()
As Scott says, Mcrypt is not a good idea as it has not been updated since 2007.
There is even an RFC to remove Mcrypt from PHP - https://wiki.php.net/rfc/mcrypt-viking-funeral
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Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
...n Is Initialization" -- a poor name† for a really useful concept.
The idea is that an object's destructor is responsible for freeing resources. When the object has automatic storage duration, the object's destructor will be called when the block in which it was created exits -- even when that ...
Difference between Big-O and Little-O Notation
...d ≤ 1
not ≤ 0, < 0, or < 1
Here's a table, showing the general idea:
(Note: the table is a good guide but its limit definition should be in terms of the superior limit instead of the normal limit. For example, 3 + (n mod 2) oscillates between 3 and 4 forever. It's in O(1) despite not...
Changing my CALayer's anchorPoint moves the view
...NSLog position and frame they look correct but my view is still moved. Any idea why? It's like the new position isn't taken into account.
– Alexis
Jun 19 '14 at 13:29
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What does “S3 methods” mean in R?
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I am pretty sure that the idea of member functions and methods belonging to objects does not make that much sense in R. Methods do not belong to objects (also functions are objects too) but belong to the function.
– petermeissner...
offsetting an html anchor to adjust for fixed header [duplicate]
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@harpo: Nice idea, but doesn't work. Tried in Chrome 40.
– Hannobo
Feb 3 '15 at 18:51
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How can I style an Android Switch?
... The tool is really great, although, frankly, I am not fond of an idea that if you want to just change the color of something you need to generate a bunch of images. Also, if you are using shapes, you can have different colors for off/on switch positions.
– netpork
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How do servlets work? Instantiation, sessions, shared variables and multithreading
... will work on the requests from all other clients.
Why isn't it a good idea to have one instance per client? Think about this: Will you hire one pizza guy for every order that came? Do that and you'd be out of business in no time.
It comes with a small risk though. Remember: this single guy hol...
Bubble Sort Homework
...as we start the while loop, we assume that the list is already sorted. The idea is this: as soon as we find two elements that are not in the right order, we set sorted back to False. sorted will remain True only if there were no elements in the wrong order.
sorted = False # We haven't started sort...
Returning IEnumerable vs. IQueryable
...ve any benefits, it's not enough of a reason to prefer IEnumerable, so the idea of using IQueryable all over the place remains valid.
– Sergei Tachenov
Aug 7 '16 at 16:30
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