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How to solve PHP error 'Notice: Array to string conversion in…'

...n $_POST['C']. So when you echo that, you are trying to print an array, so all it does is print Array and a notice. To print properly an array, you either loop through it and echo each element, or you can use print_r. Alternatively, if you don't know if it's an array or a string or whatever, you c...
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Mongoose subdocuments vs nested schema

...still have the same subdocument structure. – Martin Hallén Jul 9 '14 at 9:17 2 you should also c...
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Django : How can I see a list of urlpatterns?

... If you want a list of all the urls in your project, first you need to install django-extensions, add it to your settings like this: INSTALLED_APPS = ( ... 'django_extensions', ... ) And then, run this command in your terminal ./manage.py show_...
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C# Sanitize File Name

... And another potentially great SO user goes walking... This function is great. Thank you Adrevdm... – Dan Rosenstark Aug 1 '09 at 2:15 ...
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“Unknown provider: aProvider

...that caused this issue, but I have since been able to find the problem manually. There was a controller function declared on the global scope, instead of using a .controller() call on the application module. So there was something like this: function SomeController( $scope, i18n ) { /* ... */ } ...
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How to test code dependent on environment variables using JUnit?

... value); } } For Java 5 to 7 the library System Rules has a JUnit rule called EnvironmentVariables. import org.junit.contrib.java.lang.system.EnvironmentVariables; public class EnvironmentVariablesTest { @Rule public final EnvironmentVariables environmentVariables = new EnvironmentVariab...
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URL Encoding using C#

...file name) may be constructed using Uri.EscapeDataString(fileOrFolderName) allowing all non Uri compatible character (spaces, unicode ...). For example to allow any character in filename, use: req =(FtpWebRequest)WebRequest.Create(new Uri(path + "/" + Uri.EscapeDataString(filename))); Using...
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What's the cause of this FatalExecutionEngineError in .NET 4.5 beta? [closed]

The sample code below occurred naturally. Suddenly my code thew a very nasty-sounding FatalExecutionEngineError exception. I spent a good 30 minutes trying to isolate and minimize the culprit sample. Compile this using Visual Studio 2012 as a console app: ...
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Difference between Node object and Element object?

I am totally confused between Node object and Element object. document.getElementById() returns Element object while document.getElementsByClassName() returns NodeList object(Collection of Elements or Nodes?) ...
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C# binary literals

... @Dai that’s no different than hex literals. In other words, all constants are big endian, but stored little endian on Intel/AMD and most ARMs. 0xDEADBEEF will be stored as 0xEF 0xBE 0xAD 0xDE – Cole Johnson Sep 2 '19 at 18:28 ...