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Is there a use-case for singletons with database access in PHP?
I access my MySQL database via PDO. I'm setting up access to the database, and my first attempt was to use the following:
1...
Significant new inventions in computing since 1980
...World Wide Web ("distributed hypertext via simple mechanisms") as proposed and implemented by Tim Berners-Lee started in 1989/90.
While the idea of hypertext had existed before (Nelson’s Xanadu had tried to implement a distributed scheme), the WWW was a new approach for implementing a distribute...
Why all the Active Record hate? [closed]
As I learn more and more about OOP, and start to implement various design patterns, I keep coming back to cases where people are hating on Active Record .
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The SQL OVER() clause - when and why is it useful?
I read about that clause and I don't understand why I need it.
What does the function Over do? What does Partitioning By do?
Why can't I make a query with writing Group By SalesOrderID ?
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Tactics for using PHP in a high-load site
...gh to attain high server loads. Treat me as (sigh) an alien that has just landed on the planet, albeit one that knows PHP and a few optimisation techniques.
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Questions every good .NET developer should be able to answer? [closed]
... I'd like to compile a list/catalog of good questions, a kind of minimum standard to see if the applicants are experienced. So, my question is:
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How do malloc() and free() work?
I want to know how malloc and free work.
13 Answers
13
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Iterator invalidation rules
...n the old capacity. Reallocation invalidates all the references, pointers, and iterators referring to the elements in the sequence. If no reallocation
happens, all the iterators and references before the insertion point remain valid. [26.3.11.5/1]
With respect to the reserve function, reallocation i...
How exactly does the callstack work?
I'm trying to get a deeper understanding of how the low level operations of programming languages work and especially how they interact with the OS/CPU. I've probably read every answer in every stack/heap related thread here on Stack Overflow, and they are all brilliant. But there is still one thin...
Styling multi-line conditions in 'if' statements? [closed]
...4 spaces on your second conditional line. Maybe use:
if (cond1 == 'val1' and cond2 == 'val2' and
cond3 == 'val3' and cond4 == 'val4'):
do_something
Also, don't forget the whitespace is more flexible than you might think:
if (
cond1 == 'val1' and cond2 == 'val2' and
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