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What is Unicode, UTF-8, UTF-16?

What's the basis for Unicode and why the need for UTF-8 or UTF-16? I have researched this on Google and searched here as well but it's not clear to me. ...
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WSDL vs REST Pros and Cons

Related: 13 Answers 13 ...
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What is the difference between properties and attributes in HTML?

After the changes made in jQuery 1.6.1, I have been trying to define the difference between properties and attributes in HTML. ...
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How to copy files across computers using SSH and MAC OS X Terminal [closed]

...compression use SCP: scp username@yourserver.com:~/serverpath/public_html ~/Desktop share | improve this answer | follow | ...
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Regular Expression to match only alphabetic characters

...l make sure that nothing but these alphabets will be matched. Code: preg_match('/^[A-Z]+$/i', "abcAbc^Xyz", $m); var_dump($m); Output: array(0) { } Test case is for OP's comment that he wants to match only if there are 1 or more alphabets present in the input. As you can see in the test case...
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Regular expression for floating point numbers

I have a task to match floating point numbers. I have written the following regular expression for it: 12 Answers ...
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Get Image Height and Width as integer values?

... Try like this: list($width, $height) = getimagesize('path_to_image'); Make sure that: You specify the correct image path there The image has read access Chmod image dir to 755 Also try to prefix path with $_SERVER["DOCUMENT_ROOT"], this helps sometimes when you are not ab...
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What is the difference between i++ and ++i?

I've seen them both being used in numerous pieces of C# code, and I'd like to know when to use i++ or ++i ( i being a number variable like int , float , double , etc). Anyone who knows this? ...
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warning: incompatible implicit declaration of built-in function ‘xyz’

...an page says this function is a GNU extension and synopsis shows: #define _GNU_SOURCE #include <string.h> When #define is added to my source before the #include, declarations for the GNU extensions are made visible and warnings disappear. ...
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Simplest PHP example for retrieving user_timeline with Twitter API version 1.1

...tter v1.1 API, and the class I've created which you can find below. require_once('TwitterAPIExchange.php'); /** Set access tokens here - see: https://dev.twitter.com/apps/ **/ $settings = array( 'oauth_access_token' => "YOUR_OAUTH_ACCESS_TOKEN", 'oauth_access_token_secret' => "YOUR_OA...