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What is the difference between a thread and a fiber?

...ht-weight, cooperative threads. Both are separate execution paths for your application. With threads: the current execution path may be interrupted or preempted at any time (note: this statement is a generalization and may not always hold true depending on OS/threading package/etc.). This means tha...
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Convert UTC datetime string to local datetime

...ver had to convert time to and from UTC. Recently had a request to have my app be timezone aware, and I've been running myself in circles. Lots of information on converting local time to UTC, which I found fairly elementary (maybe I'm doing that wrong as well), but I can not find any information on ...
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Are PHP short tags acceptable to use?

.... as long as you're comfortable requiring PHP 5.4. Widely-distributed PHP apps (like wordpress) don't have the luxury of requiring 5.4, and even continued to offer PHP 4 support up until 2011 -- a full 7 years after PHP 5 was released. If you're at a place like facebook, where all installations of...
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How to use PHP OPCache?

...nd it features a new code caching module called OPCache, but there doesn't appear to be any documentation for it. 5 Answer...
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Replacing H1 text with a logo image: best method for SEO and accessibility?

... does wrapping an h1 around an image with alt text carry the same weight (seo-wise) as plain text wrapped with an h1? – Andrew Jun 18 '09 at 12:11 ...
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What is an application binary interface (ABI)?

...e, you access the library through an API. Once the code is compiled, your application accesses the binary data in the library through the ABI. The ABI defines the structures and methods that your compiled application will use to access the external library (just like the API did), only on a lower ...
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Should you ever use protected member variables?

...a derived class, I change it from private to protected. This hardly ever happens - I'm really not a fan at all of inheritance, as it isn't a particularly good way to model most situations. At any rate, carry on, no worries. I'd say this is fine (and probably the best way to go about it) for the ma...
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How to solve javax.net.ssl.SSLHandshakeException Error?

...rom the web-service and i bind to UI. And also I integrated PayPal with my application for make Express checkout when I make a call for payment I'm facing this error. I use servlet for back-end process. Can any one say how to fix this issue? ...
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What exactly are DLL files, and how do they work?

...es that can contain executable code and resources like images, etc. Unlike applications, these cannot be directly executed, but an application will load them as and when they are required (or all at once during startup). Are they important? Most applications will load the DLL files they require at...
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Placeholder in UITextView

My application uses an UITextView . Now I want the UITextView to have a placeholder similar to the one you can set for an UITextField . ...