I'm the fire of the Commando. Introduction of PHP function syntax

Copy the Code code 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 $x (the keyword "uses" The force of the increasingly variable context), which requires an extra parameter of $ y and returns to the call. This feature can be stored as a parameter to another function such as details see lambda function and close the RFC.

The above describes me is the fire of the Special Forces the introduction of PHP function syntax introduction, including I was the fire Phoenix drama Diversity Introduction content, I hope to PHP tutorial interested friends have helped.

