"Quite possibly one of PHP's least utilized yet most valuable features is its support for Variable Variables. ..."

"A variable variable is, in short, a method of using the value of one variable to call the name of another. For instance, if I had a variable $x with the value of "Eric", I could set a variable $Eric to "Seufert" by simply writing $$x = "Seufert". This process calls the value of $x and then creates a variable out of it. ..."

"... Variable Variables make working with forms and other such user-input easier because they allow you to centralize all the available options. ..."

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