PHP function syntax 1

PHP's rise supports top-notch functions and shutdown. The real anonymous feature supports the following syntax: The code is as follows:
Function getAdder ($ x)
{
Return function ($ y) use ($ x ){
Return $ x + $ y;
};
}
$ Adder = getAdder (8 );
Echo $ adder (2); // prints "10"

Here, the getAdder () function creates a closed use parameter $ × (the keyword "use" becomes more and more variable context), which requires additional parameters $ Y and returns to the call. This function can be stored, because for details such as passing parameters to another function, see the lamboda function and the disabled RFC.