PHP 进程（） function

Question

I was doing some reading through the PHP manual and ended up on this page:

http://php.net/manual/en/function.create-function.php

While reading example #2 I found an odd function being called that I have never seen before: process()

I looked all through the PHP manual site and could not find any documentation. From what I could understand from looking at the example it seems pass the strings as the first 2 arguments through an array of create_function()'s. Could anyone point me to some documentation on this? It seems like an interesting and possibly useful function. Examples of it effectively in use would be great too!

Answer 1

At the top of example #2, they are defining that function.

function process($var1, $var2, $farr)
{
    foreach ($farr as $f) {
        echo $f($var1, $var2) . "\n";
    }
}