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How to get the client IP address in PHP [duplicate]

...there is also a special IPv6 notation for IPv4 addresses which in its full form can be up to 45 characters. So if you know what you are doing you can use 39 characters, but if you just want to set and forget it, use 45). sha...
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Check if table exists and if it doesn't exist, create it in SQL Server 2008

...about sys.objects vs. sysobjects vs. sys.all_objects vs. sys.tables. Basic form: IF object_id('MyTable') is not null PRINT 'Present!' ELSE PRINT 'Not accounted for' Of course this will show as "Present" if there is any object present with that name. If you want to check just tables, you'd...
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Access key value from Web.config in Razor View-MVC3 ASP.NET

... with .net MVC is a shame. Have a look at bundling asp.net/mvc/overview/performance/bundling-and-minification – Crypth Dec 19 '14 at 14:16 ...
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Unix shell script to truncate a large file

...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); }); $window.unbind('scroll', onScroll); } }; ...
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Swapping two variable value without using third variable

... a common procedure it should output the optimum machine code for your platform. Take for example this quick test program written in C. #include <stdlib.h> #include <math.h> #define USE_XOR void xorSwap(int* x, int *y){ if ( x != y ){ *x ^= *y; *y ^= *x; ...
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Creating runnable JAR with Gradle

... Both JB Nizet and Jorge_B's answers are correct. In its simplest form, creating an executable JAR with Gradle is just a matter of adding the appropriate entries to the manifest. However, it's much more common to have dependencies that need to be included on the classpath, making this appr...
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Is it better to return null or empty collection?

...' in c# never means something specific. The value null is defined as "no information" and hence to say that it carries specific information is an oximoron. That's why the .NET guidelines state that you should return an empty set if the set is indeed empty. returning null is saying: "I don't know whe...
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What is the difference between dynamic and static polymorphism in Java?

... Polymorphism: Polymorphism is the ability of an object to take on many forms. The most common use of polymorphism in OOP occurs when a parent class reference is used to refer to a child class object. Dynamic Binding/Runtime Polymorphism : Run time Polymorphism also known as method overriding. ...
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What does it mean when an HTTP request returns status code 0?

... of things which could cause this, but based off of your description, some form of firewall seems the most likely culprit. share | improve this answer | follow ...
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What are the pros and cons of the leading Java HTML parsers? [closed]

...ntly recommended by various parties. Unfortunately it's hard to find any information on the strengths and weaknesses of the various libraries. I'm hoping that some people have spent some comparing these libraries, and can share what they've learned. ...