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PHP function to build query string from array

I'm looking for the name of the PHP function to build a query string from an array of key value pairs. Please note, I am looking for the built in PHP function to do this, not a homebrew one (that's all a google search seems to return). There is one, I just can't remember its name or find it on php...
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Math.random() explanation

... If you want to generate a number from 0 to 100, then your code would look like this: (int)(Math.random() * 101); To generate a number from 10 to 20 : (int)(Math.random() * 11 + 10); In the general case: (int)(Math.random() * ((upperbound - lowerbound)...
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Pass a parameter to a fixture function

... You can access the requesting module/class/function from fixture functions (and thus from your Tester class), see interacting with requesting test context from a fixture function. So you could declare some parameters on a class or module and the tester fixture can pick it up....
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What is the difference between List (of T) and Collection(of T)?

... public void new InsertItem(...) and then calling the base.InsertItem(...) from within ? It would still not break the contract. (the name is 'Insert' in List, but nonetheless). So what is the big deal in sticking to Collections<T> ? – DeeStackOverflow Mar...
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Current location permission dialog disappears too quickly

...the user's location, gets the co-ordinates , and provides a distance to or from their destination or origin. All these possible destinations are shown in a table view, so I'm getting the users co-ordinates at the same time as populating the table. The only thing is, the alert view that asks for the ...
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Remove useless zero digits from decimals in PHP

I'm trying to find a fast way to remove zero decimals from number values like this: 24 Answers ...
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How to remove last n characters from every element in the R vector

...ld not find a simple example online of how to remove the last n characters from every element of a vector (array?) 5 Answe...
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How to copy files from 'assets' folder to sdcard?

...need to copy all of them to a folder say /sdcard/folder. I want to do this from within a thread. How do I do it? 22 Answer...
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Is it possible for a computer to “learn” a regular expression by user-provided examples?

... Yes, it is possible, we can generate regexes from examples (text -> desired extractions). This is a working online tool which does the job: http://regex.inginf.units.it/ Regex Generator++ online tool generates a regex from provided examples using a GP search algorit...
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Error in Swift class: Property not initialized at super.init call

... Quote from The Swift Programming Language, which answers your question: “Swift’s compiler performs four helpful safety-checks to make sure that two-phase initialization is completed without error:” Safety check 1 ...