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PHP: How to use array_filter() to filter array keys?

...), but it does offer the additional flexibility of performing an arbitrary test against the key, e.g. $allowed could contain regex patterns instead of plain strings. You can also use ARRAY_FILTER_USE_BOTH to have both the value and the key passed to your filter function. Here's a contrived example ...
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How to link C++ program with Boost using CMake

...2 xy xy 4.0K May 28 19:23 ./ -rw-rw-r-- 1 xy xy 2.3M May 28 19:23 libboost_test_exec_monitor.a -rw-rw-r-- 1 xy xy 2.2M May 28 19:23 libboost_unit_test_framework.a ....... xy@xy:~/boost_install/lib$ ll -th include/ total 20K drwxrwxr-x 110 xy xy 12K May 28 19:22 boost/ If you are interested in ho...
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Unique ways to use the Null Coalescing operator [closed]

...t you can easily convert nullable value types to non-nullable types: int? test = null; var result = test ?? 0; // result is int, not int? I frequently use this in Linq queries: Dictionary<int, int?> PurchaseQuantities; // PurchaseQuantities populated via ASP .NET MVC form. var totalPurchas...
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Auto layout constraints issue on iOS7 in UITableViewCell

... before adding the constraints to my content view. – testing Nov 11 '14 at 13:10 ...
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Java: Detect duplicates in ArrayList?

...- it just needs to be consistent with your definition of equality), the fastest duplicate removal solution is going to sort the list ( 0(n log(n)) ) then to do a single pass and look for repeated elements (that is, equal elements that follow each other) (this is O(n)). The overall complexity is goi...
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Unix tail equivalent command in Windows Powershell

... documented well in v2. Here is an example Get-Content -Path "C:\scripts\test.txt" -Wait Once you run this, update and save the file and you will see the changes on the console. share | improve ...
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window.location.reload with clear cache [duplicate]

...avaScript but I want to clear cache too, so on page refresh the page has latest versions of everything from server. Other browsers except IE are not getting latest content. ...
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Returning binary file from controller in ASP.NET Web API

...rsion, string environment, string filetype) { var path = @"C:\Temp\test.exe"; HttpResponseMessage result = new HttpResponseMessage(HttpStatusCode.OK); var stream = new FileStream(path, FileMode.Open, FileAccess.Read); result.Content = new StreamContent(stream); result.Content...
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Force drop mysql bypassing foreign key constraint

...technical_specification`, `pwishlist`, `role_perms`, `roles`, `settings`, `test`, `testanother`, `user_perms`, `user_roles`, `users`, `wishlist`; | +-------------------------------------------------------------------------------------------------------------------------------------------------------...
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How to check if a number is a power of 2

...t examples. e.g. Isolate the rightmost 1-bit with y = x & (-x). This test is just a special case of clearing the lowest set bit. – Peter Cordes Sep 18 at 18:34 add a com...