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

...g <input name='C[]' in your HTML. This creates an array in PHP when the form is sent. You are using echo $_POST['C']; to echo that array - this will not work, but instead emit that notice and the word "Array". Depending on what you did with the rest of the code, you should probably use echo $_P...
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ActiveRecord: List columns in table from console

... Great! Using Model.columns provides all the information for a table through ActiveRecord. Crucially for me it was the only and easiest way to gain confidence in what my primary key really was at the database level. – nibbex Mar 11 '...
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how to change namespace of entire project?

... creates independed solution with a new namespace name an so on. In main form find namespace name -> right click -> Refactor -> Rename and select a new name. Check all boxes and click OK. In the solution explorer rename solution name to a new name. In the solution explorer rename project ...
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How to remove part of a string? [closed]

... of a string. The function substr() will take a string as input, the index form where you want the string to be trimmed. and an optional parameter is the length of the substring. You can see proper documentation and example code on http://php.net/manual/en/function.substr.php NOTE : index for a str...
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How to get the position of a character in Python?

... @Sean : print statement was removed. Only the function form remains. Irritating, but the answer is simply to change that final line to: print( [pos for pos, char in enumerate(s) if char == c]) – The Nate Aug 26 '16 at 5:14 ...
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Putting a simple if-then-else statement on one line [duplicate]

... You can't omit the else when using the ternary form, it results in a syntax error, but you could do a normal if in one line , I updated the samples to illustrate. – cmsjr Feb 15 '17 at 3:42 ...
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How do I export a project in the Android studio?

...ue when building an APK to debug on an emulator or device. And when you perform a release build, such as Exporting APK, it will automatically set it to false. If on the other hand you specify a specific value in the manifest file, then the tools will always use it. This can lead to accidentally publ...
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How to remove newlines from beginning and end of a string?

... LINE FEED. It is '\u000B', U+000B VERTICAL TABULATION. It is '\f', U+000C FORM FEED. It is '\r', U+000D CARRIAGE RETURN. It is '\u001C', U+001C FILE SEPARATOR. It is '\u001D', U+001D GROUP SEPARATOR. It is '\u001E', U+001E RECORD SEPARATOR. It is '\u001F', U+0 ...
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Delete forked repo from GitHub

...ed to type in your github username and the name of your repository in this format gitHubUsername/nameOfTheRepository and click on the button below which says: I understand the consequences, delete the repository If you are having trouble to do it, below are the images that can be checked… 2020-0...
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Pass a PHP array to a JavaScript function [duplicate]

...ted array, check print_r($array) before json_encode() and see if the array formed is like same as above then it will work fine. – Tarun Gupta Dec 4 '15 at 4:25 1 ...