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How can I check if a URL exists via PHP?

...side. Waiting for a response might take time and block code execution. Not all headers returned by get_headers() are well formed. Use curl (if you can). Prevent fetching the entire body/content, but only request the headers. Consider redirecting urls: Do you want the first code returned? Or follow a...
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C# 4 default parameter values: How to assign a default DateTime/object value? [duplicate]

...opt] int32 x) cil managed { .param [1] = int32(5) .maxstack 8 L_0000: nop L_0001: ret } .method //this is a new method private hidebysig static //it is private, ???, and static void foo //it returns nothing (void) and is named Foo ([opt] int32 x) //it has one parameter, which i...
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What is the best way to get all the divisors of a number?

... i += 1 if i >= nfactors: return The overall efficiency of this algorithm will depend entirely on the efficiency of the factorGenerator. share | improve this answer...
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Batch script to delete files

...re onto your desktop. if you want to remove an entire folder like an uninstaller program you could use this. cd C:\Users\User\Detsktop\ rd /s /q SOFTWARE this will delete the entire folder called software and all of its files and subfolders Make Sure You Delete The Correct Folder Cause This Does...
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Responsive css background images

...ave defined a bg-image for the content) also responsive. Unfortunately I really don't have any idea on how to do this except for one thing that I can think of but it's quite a workaround. Creating multiple images and then using css screen size to change the images but I wanna know if there is a more...
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How to print matched regex pattern using awk?

...search for pattern using //, then print out the line, which by default is called a record, denoted by $0. At least read up the documentation. If you only want to get print out the matched word. awk '{for(i=1;i<=NF;i++){ if($i=="yyy"){print $i} } }' file ...
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UIButton remove all target-actions

...multiple target-action-forControlEvents: to a UIButton. I'd like to remove all of these in one go without deallocating anything. I will then set new targets. ...
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Setting dynamic scope variables in AngularJs - scope.

...one please add a new answer to the question! Here is the example: var the_string = 'life.meaning'; // Get the model var model = $parse(the_string); // Assigns a value to it model.assign($scope, 42); // Apply it to the scope // $scope.$apply(); <- According to comments, this is no longer need...
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How is “=default” different from “{}” for default constructor and destructor?

I originally posted this as a question only about destructors, but now I'm adding consideration of the default constructor. Here's the original question: ...
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What's the u prefix in a Python string?

... Mar 17 '10 at 18:45 Stefan KendallStefan Kendall 59.9k6161 gold badges228228 silver badges387387 bronze badges ...