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How can I force users to access my page over HTTPS instead of HTTP?

... The way I've done it before is basically like what you wrote, but doesn't have any hardcoded values: if($_SERVER["HTTPS"] != "on") { header("Location: https://" . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"]); exit(); } ...
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Resumable downloads when using PHP to send the file?

...e first thing you need to do is to send the Accept-Ranges: bytes header in all responses, to tell the client that you support partial content. Then, if request with a Range: bytes=x-y header is received (with x and y being numbers) you parse the range the client is requesting, open the file as usua...
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What are “connecting characters” in Java identifiers?

... I'm not sure that actually fully answers the (implied) question of which characters may start a Java identifier. Following links we end up at Character.isJavaIdentifierStart() which states A character may start a Java identifier if and only if one...
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Concurrent HashSet in .NET Framework?

...ass. private ConcurrentBag<string> _data; Self-implementation Finally, as you did, you can implement your own data type, using lock or other ways that the .NET provides you to be thread-safe. Here is a great example: How to implement ConcurrentHashSet in .Net The only drawback of this sol...
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Android Studio says “cannot resolve symbol” but project compiles

...alidate and Restart" option to fix this. EDIT 2: This fix should work for all similar incidents and is not a twitter4j specific resolution. share | improve this answer | fol...
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What is the canonical way to check for errors using the CUDA runtime API?

...ag wiki , I see it is often suggested that the return status of every API call should checked for errors. The API documentation contains functions like cudaGetLastError , cudaPeekAtLastError , and cudaGetErrorString , but what is the best way to put these together to reliably catch and report err...
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Difference between len() and .__len__()?

Is there any difference between calling len([1,2,3]) or [1,2,3].__len__() ? 4 Answers ...
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How to implement a rule engine?

...Rules = rules.Select(r => CompileRule(r)).ToList(); public bool MatchesAllRules(User user) { return compiledRules.All(rule => rule(user)); } Here is the implementation of BuildExpr: Expression BuildExpr(Rule r, ParameterExpression param) { var left = MemberExpression.Property(param, ...
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What is the purpose of python's inner classes?

...dden from the outside world. More readable, maintainable code: Nesting small classes within top-level classes places the code closer to where it is used. The main advantage is organization. Anything that can be accomplished with inner classes can be accomplished without them. ...
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How to output a multiline string in Bash?

How can I output a multipline string in Bash without using multiple echo calls like so: 7 Answers ...