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How to check whether an array is empty using PHP?

... is empty. } If you need to clean out empty values before checking (generally done to prevent explodeing weird strings): foreach ($playerlist as $key => $value) { if (empty($value)) { unset($playerlist[$key]); } } if (empty($playerlist)) { //empty array } ...
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List of standard lengths for database fields

...e with a variety of backgrounds, you should ask yourself whether you really need to have separate fields for given name and family name. … Bear in mind that names in some cultures can be quite a lot longer than your own. … Avoid limiting the field size for names in your database. In...
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How to check if an app is installed from a web-page on an iPhone?

...an iPhone to the app-store if the iPhone does not have the application installed, but if the iPhone has the app installed I want it to open the application. ...
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Expansion of variables inside single quotes in a command in Bash

... Inside single quotes everything is preserved literally, without exception. That means you have to close the quotes, insert something, and then re-enter again. 'before'"$variable"'after' 'before'"'"'after' 'before'\''after' Word concatenation is simply done by juxtapositi...
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Get type of a generic parameter in Java with reflection

...an that the JDK eliminates type information at runtime. It's a method for allowing compile-time type checking and runtime type compatibility to coexist in the same language. As this block of code implies, the JDK retains the erased type information--it's just not associated with checked casts and ...
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Simplest SOAP example

... '<soapenv:Body>' + '<api:some_api_call soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">' + '<username xsi:type="xsd:string">login_username</username>' + '<password xsi:...
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Python in Xcode 4+?

...d it out! The steps make it look like it will take more effort than it actually does. These instructions are for creating a project from scratch. If you have existing Python scripts that you wish to include in this project, you will obviously need to slightly deviate from these instructions. If yo...
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How do I properly force a Git push?

... You can use git push origin +master instead, which allow you push multiple refspecs without forcing them all. – nickgrim Nov 20 '13 at 10:36 5 ...
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Java FileReader encoding issue

...to a string, but I found the result is wrongly encoded and not readable at all. 6 Answers ...
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Is there a built in function for string natural sort?

... There is a third party library for this on PyPI called natsort (full disclosure, I am the package's author). For your case, you can do either of the following: >>> from natsort import natsorted, ns >>> x = ['Elm11', 'Elm12', 'Elm2', 'elm0', 'elm1', 'elm1...