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How to properly create composite primary keys - MYSQL

... gross oversimplification of an intense setup I am working with. table_1 and table_2 both have auto-increment surrogate primary keys as the ID. info is a table that contains information about both table_1 and table_2 . ...
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Invalid argument supplied for foreach()

It often happens to me to handle data that can be either an array or a null variable and to feed some foreach with these data. ...
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What is Vim recording and how can it be disabled?

... You start recording by q<letter> and you can end it by typing q again. Recording is a really useful feature of Vim. It records everything you type. You can then replay it simply by typing @<letter>. Record search, movement, replacement... One of the...
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Auto layout constraints issue on iOS7 in UITableViewCell

... layout constraints programmatically to layout my custom UITableView cells and I'm correctly defining the cell sizes in tableView:heightForRowAtIndexPath: ...
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What is the correct way to restore a deleted file from SVN?

I deleted a file from a repo and now want to put it back. The best I can figure out is to: 9 Answers ...
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.net implementation of bcrypt

...I'm a bit unsure of just picking an implementation that turns up in google and am thinking that I may be better off using sha256 in the System.Security.Cryptography namespace, at least then I know it's supported! What are you thoughts? ...
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What is the best way to conditionally apply attributes in AngularJS?

...efix any attribute with ng-attr-, then the compiler will strip the prefix, and add the attribute with its value bound to the result of the angular expression from the original attribute value. – Matthias Nov 18 '13 at 21:37 ...
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PHP 5: const vs static

In PHP 5, what is the difference between using const and static ? 7 Answers 7 ...
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How to detect if a function is called as constructor?

... NOTE: This is now possible in ES2015 and later. See Daniel Weiner's answer. I don't think what you want is possible [prior to ES2015]. There simply isn't enough information available within the function to make a reliable inference. Looking at the ECMAScript 3...
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How to change UIPickerView height

... have shorter PickerViews but setting a smaller frame doesn't seem to work and the frame is locked in Interface Builder. 27...