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Get the client IP address using PHP [duplicate]

... I usually don't like nested ternaries, but I really like it in this case... – Charles Harmon Jul 18 '14 at 20:49 ...
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Is errno thread-safe?

...t errno; so my question is, is it safe to check errno value after some calls or use perror() in multi-threaded code. Is this a thread safe variable? If not, then whats the alternative ? ...
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Unzip a file with php

...e it out by yourself. On the other hand, the fact that this code could actually be published online somewhere as the correct way to unzip a file is a bit frightening. PHP has built-in extensions for dealing with compressed files. There should be no need to use system calls for this. ZipArchivedocs ...
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Any way to delete in vim without overwriting your last yank? [duplicate]

... This is probably the simplest but effective solution! I've found that all I need is the most-recent yank in 99% cases. And this trick just scratches the itch! – John Chain Oct 14 '13 at 20:40 ...
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relative path in require_once doesn't work

... Note that you should manually include the trailing slash in after __DIR__. So: require_once(__DIR__.'/../class/user.php'); Per the documentation, the trailing slash is omitted except for the root directory. – Ariel Allon ...
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How to set the JDK Netbeans runs on?

...\netbeans.conf Change the following line to point it where your java installation is : netbeans_jdkhome="C:\Program Files\Java\jdk1.7xxxxx" You may need Administrator privileges to edit netbeans.conf share | ...
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Is it intended by the C++ standards committee that in C++11 unordered_map destroys what it inserts?

... always move from its argument. It's supposed to move if the argument is really an rvalue, and copy if it's an lvalue. The behaviour, you observe, which always moves, is a bug in libstdc++, which is now fixed according to a comment on the question. For those curious, I took a look at the g++-4.8 he...
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Is there a benefit to defining a class inside another class in Python?

What I'm talking about here are nested classes. Essentially, I have two classes that I'm modeling. A DownloadManager class and a DownloadThread class. The obvious OOP concept here is composition. However, composition doesn't necessarily mean nesting, right? ...
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How can I maximize a split window?

... a reputable source, I'm going to hold that as your personal preference, really. I'm usually not using them, but I've recently found I'm using them for thigns like this (maximizing a sidebuffer temporarily; doing power stuff like having multiple disjoint side-by-side diffs in a single vim session). ...
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Setting the selected value on a Django forms.ChoiceField

...rying to assign the selected value to a ChoiceField. If you have already called super().__init__ in your Form class, you should update the form.initial dictionary, not the field.initial property. If you study form.initial (e.g. print self.initial after the call to super().__init__), it will contai...