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Redis: Show database size/size for keys

...ue require to be stored in RAM. The reported usage is the total of memory allocations for data and administrative overheads that a key its value require (source redis documentation) share | improve...
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Modify SVG fill color when being served as Background-Image

...server-side script, to make sure you also send the correct MIME header. In PHP this would be: <?php header('Content-type: image/svg+xml'); ?> – slightlyfaulty Aug 21 '14 at 10:53 ...
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Grep for literal strings

...nothing will be found. So this didn't return any result: grep --include=\*.php -FRn -e "$$" Using single quoutes gave me the wanted result: grep --include=\*.php -FRn -e '$$' – Piemol Nov 15 '17 at 13:16 ...
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How to show math equations in general github's markdown(not github's blog)

...e following markdown syntax ![equation](http://www.sciweavers.org/tex2img.php?eq=1%2Bsin%28mc%5E2%29&bc=White&fc=Black&im=jpg&fs=12&ff=arev&edit=) it will display the following image equation http://www.sciweavers.org/tex2img.php?eq=1%2Bsin%28mc%5E2%29&bc=White&fc...
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Multiple Updates in MySQL

...ice for dynamic updating too. For example, I used that solution in loop in php: $commandTxt = 'UPDATE operations SET chunk_finished = CASE id '; foreach ($blockOperationChecked as $operationID => $operationChecked) $commandTxt .= " WHEN $operationID THEN $ope...
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Array to Hash Ruby

... @Kevin, the stack uses a small area of memory that the program allocates and reserves for certain specific operations. Most commonly, it is used to keep a stack of the methods that have been called so far. This is the origin of the term stack trace, and this is also why an infinitely rec...
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Format number to 2 decimal places

...://www.w3resource.com/mysql/mathematical-functions/mysql-truncate-function.php With rounding: ROUND(0.166, 2) -- will be evaluated to 0.17 ROUND(0.164, 2) -- will be evaluated to 0.16 docs: http://www.w3resource.com/mysql/mathematical-functions/mysql-round-function.php ...
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Reducing Django Memory Usage. Low hanging fruit?

...our browser at http://domain/_dozer/index to see a list of all your memory allocations. I'll also just add my voice of support for mod_wsgi. It makes a world of difference in terms of performance and memory usage over mod_python. Graham Dumpleton's support for mod_wsgi is outstanding, both in ter...
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How to disable typing special characters when pressing option key in Mac OS X? [closed]

...is to download Ukulele from here: http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=ukelele In the application you can create a new keylayout using File -> New from current source. Pressing Option will show you in the place for Option-b a red colored key - meaning it's a dead key....
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Are iframes considered 'bad practice'? [closed]

...that said, if you are limited to HTML and have no access to a backend like PHP or ASP.NET etc, sometimes an iframe is your only option. share | improve this answer | follow ...