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What is the coolest thing you can do in

... PHP - the Sierpinski gasket a.k.a the Triforce OK, it's 15 lines of code but the result is awesome! That's the kind of stuff that made me freak out when I was a child. This is from the PHP manual: $x = 200; $y = 200; $gd = i...
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How to check version of python modules?

... I think this can help but first install show package in order to run pip show then use show to find the version! sudo pip install show # in order to get package version execute the below command sudo pip show YOUR_PACKAGE_NAME | grep Version ...
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Setting up FTP on Amazon Cloud Server [closed]

...cess." vsftpd will allow FTP access to any user not on this list. So, in order to create a new FTP account, you may need to create a new user on your server. (Or, if you already have a user account that's not listed in /etc/vsftpd/user_list, you can skip to the next step.) Creating a new user on...
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Hook up Raspberry Pi via Ethernet to laptop without router? [closed]

...ble_uart=1 as explained at: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=141195 This first partition contains the bootloader, its configuration files and the (Linux / your) kernel, config.txt being one of them. The second partition contains the actual Linux root filesystem. Now co...
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Set Background cell color in PHPExcel

How to set specific color to active cell when creating XLS document in PHPExcel? 10 Answers ...
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Gzip versus minify

...n, it depends on how you work. You'd have to keep the original CSS file in order to make edits further down the line. If it doesn't bother you to minify it after every change then go for it. (Note: there are other solutions, such as running it through a minifier "on-demand" when serving the file, a...
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Nullable Foreign Key bad practice?

Let's say you have a table Orders with a foreign key to a Customer Id. Now, suppose you want to add an Order without a Customer Id, (whether that should be possible is another question) you would have to make the foreign key NULL... Is that bad practice or would you rather work with a link table bet...
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Example invalid utf8 string?

... In PHP: $examples = array( 'Valid ASCII' => "a", 'Valid 2 Octet Sequence' => "\xc3\xb1", 'Invalid 2 Octet Sequence' => "\xc3\x28", 'Invalid Sequence Identifier' => "\xa0\xa1", 'Valid 3 Octet Sequ...
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Unable to execute dex: Multiple dex files define Lcom/myapp/R$array;

...ct Build Path -> Configure Build Path In Java Build Path, go to the tab Order and Export Uncheck your .jar library Only sometimes: In Order and Export tab I did not have any jar library there, so I have unchecked Android Private Libraries item. Now my project is running. ...
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Why isn't sizeof for a struct equal to the sum of sizeof of each member?

... @YoYoYonnY that's not possible. The compiler is not allowed to reorder struct members although gcc has an experimental option to do that – phuclv Mar 2 '17 at 2:57 ...